What is the solutionto the linear equation? d-10-2d+7=8+d-10-3d

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asked Mar 19, 2020 173k views

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What is the solutionto the linear equation? d-10-2d+7=8+d-10-3d

Mathematics
middle-school

Jake Rankin asked

by Jake Rankin

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1 Answer

6 votes

Answer:

d = 1

Explanation:

$d-10-2d+7=8+d-10-3d\qquad\text{combine like terms}\\\\(d-2d)+(-10+7)=(d-3d)+(8-10)\\\\-d-3=-2d-2\qquad\text{add 3 to both sides}\\\\-d=-2d+1\qquad\text{add}\ 2d\ \text{to both sides}\\\\d=1$

Edralph answered Mar 23, 2020

by Edralph

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d = 1

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