9-(-8x)=42

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Solution for 9-(-8x)=42 equation:


Simplifying
9 + -1(-8x) = 42

Remove parenthesis around (-8x)
9 + -1 * -8x = 42

Multiply -1 * -8
9 + 8x = 42

Solving
9 + 8x = 42

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-9' to each side of the equation.
9 + -9 + 8x = 42 + -9

Combine like terms: 9 + -9 = 0
0 + 8x = 42 + -9
8x = 42 + -9

Combine like terms: 42 + -9 = 33
8x = 33

Divide each side by '8'.
x = 4.125

Simplifying
x = 4.125

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