Solve the system by substitution. 12x+6y+7z=−35 7x−5y−6z=200 x+y=−10

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Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

( 10 , −20, − 5 )

Equation Form:

x =10, y =−20, z = −5

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step-by-step explanation:

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step-by-step explanation:

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