15x+30(x-3)=180

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Solution for 15x+30(x-3)=180 equation:


Simplifying
15x + 30(x + -3) = 180

Reorder the terms:
15x + 30(-3 + x) = 180
15x + (-3 * 30 + x * 30) = 180
15x + (-90 + 30x) = 180

Reorder the terms:
-90 + 15x + 30x = 180

Combine like terms: 15x + 30x = 45x
-90 + 45x = 180

Solving
-90 + 45x = 180

Solving for variable 'x'.

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

Add '90' to each side of the equation.
-90 + 90 + 45x = 180 + 90

Combine like terms: -90 + 90 = 0
0 + 45x = 180 + 90
45x = 180 + 90

Combine like terms: 180 + 90 = 270
45x = 270

Divide each side by '45'.
x = 6

Simplifying
x = 6

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