15+3(2x-9)=80

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Solution for 15+3(2x-9)=80 equation:


Simplifying
15 + 3(2x + -9) = 80

Reorder the terms:
15 + 3(-9 + 2x) = 80
15 + (-9 * 3 + 2x * 3) = 80
15 + (-27 + 6x) = 80

Combine like terms: 15 + -27 = -12
-12 + 6x = 80

Solving
-12 + 6x = 80

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 6x = 80 + 12

Combine like terms: -12 + 12 = 0
0 + 6x = 80 + 12
6x = 80 + 12

Combine like terms: 80 + 12 = 92
6x = 92

Divide each side by '6'.
x = 15.33333333

Simplifying
x = 15.33333333

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