15(12-2x)+5(9-2x)=625

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Solution for 15(12-2x)+5(9-2x)=625 equation:


Simplifying
15(12 + -2x) + 5(9 + -2x) = 625
(12 * 15 + -2x * 15) + 5(9 + -2x) = 625
(180 + -30x) + 5(9 + -2x) = 625
180 + -30x + (9 * 5 + -2x * 5) = 625
180 + -30x + (45 + -10x) = 625

Reorder the terms:
180 + 45 + -30x + -10x = 625

Combine like terms: 180 + 45 = 225
225 + -30x + -10x = 625

Combine like terms: -30x + -10x = -40x
225 + -40x = 625

Solving
225 + -40x = 625

Solving for variable 'x'.

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

Add '-225' to each side of the equation.
225 + -225 + -40x = 625 + -225

Combine like terms: 225 + -225 = 0
0 + -40x = 625 + -225
-40x = 625 + -225

Combine like terms: 625 + -225 = 400
-40x = 400

Divide each side by '-40'.
x = -10

Simplifying
x = -10

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