2x+9+4x-15=90

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Solution for 2x+9+4x-15=90 equation:


Simplifying
2x + 9 + 4x + -15 = 90

Reorder the terms:
9 + -15 + 2x + 4x = 90

Combine like terms: 9 + -15 = -6
-6 + 2x + 4x = 90

Combine like terms: 2x + 4x = 6x
-6 + 6x = 90

Solving
-6 + 6x = 90

Solving for variable 'x'.

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

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

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

Combine like terms: 90 + 6 = 96
6x = 96

Divide each side by '6'.
x = 16

Simplifying
x = 16

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