90-3x=4x+6

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Solution for 90-3x=4x+6 equation:


Simplifying
90 + -3x = 4x + 6

Reorder the terms:
90 + -3x = 6 + 4x

Solving
90 + -3x = 6 + 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.
90 + -3x + -4x = 6 + 4x + -4x

Combine like terms: -3x + -4x = -7x
90 + -7x = 6 + 4x + -4x

Combine like terms: 4x + -4x = 0
90 + -7x = 6 + 0
90 + -7x = 6

Add '-90' to each side of the equation.
90 + -90 + -7x = 6 + -90

Combine like terms: 90 + -90 = 0
0 + -7x = 6 + -90
-7x = 6 + -90

Combine like terms: 6 + -90 = -84
-7x = -84

Divide each side by '-7'.
x = 12

Simplifying
x = 12

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