Solve by Substitution 19=1x+1y+1z , 15=1x+2y+0z , 13=1x+1y+1z

Math
, ,
Simplify each equation.
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Simplify each term.
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Multiply by .
Multiply by .
Multiply by .
Simplify .
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Simplify each term.
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Multiply by .
Multiply by .
Add and .
Simplify each term.
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Multiply by .
Multiply by .
Multiply by .
Solve for in the second equation.
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Rewrite the equation as .
Subtract from both sides of the equation.
Replace all occurrences of with in each equation.
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Replace all occurrences of in with .
Replace all occurrences of in with .
Simplify each equation.
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Add and .
Add and .
Solve for in the first equation.
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Rewrite the equation as .
Move all terms not containing to the right side of the equation.
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Subtract from both sides of the equation.
Subtract from both sides of the equation.
Subtract from .
Multiply each term in by
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Multiply each term in by .
Multiply .
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Multiply by .
Multiply by .
Simplify each term.
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Multiply by .
Multiply .
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Multiply by .
Multiply by .
Replace all occurrences of with in each equation.
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Replace all occurrences of in with .
Replace all occurrences of in with .
Simplify each equation.
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Simplify .
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Simplify each term.
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Apply the distributive property.
Multiply by .
Add and .
Simplify .
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Simplify each term.
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Apply the distributive property.
Multiply by .
Simplify by adding terms.
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Combine the opposite terms in .
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Add and .
Add and .
Add and .
Since , there are no solutions.
No solution
Solve by Substitution 19=1x+1y+1z , 15=1x+2y+0z , 13=1x+1y+1z

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