Solve. 6−8x=7x−10x+21 The value of x is □.

Solve. 6−8x=7x−10x+21 The value of x is □.

Question
Equations and inequalities
asked 2021-03-07
Solve.
6−8x=7x−10x+21
The value of x is □.

Answers (1)

2021-03-08
6−8x=7x−10x+21
6−8x=−3x+21
6−8x+8x=−3x+21+8x
6=5x+21
6−21=5x+21−21
-15=5x
\(\displaystyle{\frac{{{15}}}{{{5}}}}={\frac{{{5}{x}}}{{{5}}}}\)
-3=x
0

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