7-9(5x)=20

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Solution for 7-9(5x)=20 equation:


Simplifying
7 + -9(5x) = 20

Remove parenthesis around (5x)
7 + -9 * 5x = 20

Multiply -9 * 5
7 + -45x = 20

Solving
7 + -45x = 20

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + -45x = 20 + -7

Combine like terms: 7 + -7 = 0
0 + -45x = 20 + -7
-45x = 20 + -7

Combine like terms: 20 + -7 = 13
-45x = 13

Divide each side by '-45'.
x = -0.2888888889

Simplifying
x = -0.2888888889

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