-7-9=7x+9x-20x

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Solution for -7-9=7x+9x-20x equation:


Simplifying
-7 + -9 = 7x + 9x + -20x

Combine like terms: -7 + -9 = -16
-16 = 7x + 9x + -20x

Combine like terms: 7x + 9x = 16x
-16 = 16x + -20x

Combine like terms: 16x + -20x = -4x
-16 = -4x

Solving
-16 = -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
-16 + 4x = -4x + 4x

Combine like terms: -4x + 4x = 0
-16 + 4x = 0

Add '16' to each side of the equation.
-16 + 16 + 4x = 0 + 16

Combine like terms: -16 + 16 = 0
0 + 4x = 0 + 16
4x = 0 + 16

Combine like terms: 0 + 16 = 16
4x = 16

Divide each side by '4'.
x = 4

Simplifying
x = 4

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