3x+90+6x+45=90

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Solution for 3x+90+6x+45=90 equation:


Simplifying
3x + 90 + 6x + 45 = 90

Reorder the terms:
90 + 45 + 3x + 6x = 90

Combine like terms: 90 + 45 = 135
135 + 3x + 6x = 90

Combine like terms: 3x + 6x = 9x
135 + 9x = 90

Solving
135 + 9x = 90

Solving for variable 'x'.

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

Add '-135' to each side of the equation.
135 + -135 + 9x = 90 + -135

Combine like terms: 135 + -135 = 0
0 + 9x = 90 + -135
9x = 90 + -135

Combine like terms: 90 + -135 = -45
9x = -45

Divide each side by '9'.
x = -5

Simplifying
x = -5

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