-7=9(-2x)

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Solution for -7=9(-2x) equation:


Simplifying
-7 = 9(-2x)

Remove parenthesis around (-2x)
-7 = 9 * -2x

Multiply 9 * -2
-7 = -18x

Solving
-7 = -18x

Solving for variable 'x'.

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

Add '18x' to each side of the equation.
-7 + 18x = -18x + 18x

Combine like terms: -18x + 18x = 0
-7 + 18x = 0

Add '7' to each side of the equation.
-7 + 7 + 18x = 0 + 7

Combine like terms: -7 + 7 = 0
0 + 18x = 0 + 7
18x = 0 + 7

Combine like terms: 0 + 7 = 7
18x = 7

Divide each side by '18'.
x = 0.3888888889

Simplifying
x = 0.3888888889

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