5(x-4)-2(x+5)=15

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Solution for 5(x-4)-2(x+5)=15 equation:


Simplifying
5(x + -4) + -2(x + 5) = 15

Reorder the terms:
5(-4 + x) + -2(x + 5) = 15
(-4 * 5 + x * 5) + -2(x + 5) = 15
(-20 + 5x) + -2(x + 5) = 15

Reorder the terms:
-20 + 5x + -2(5 + x) = 15
-20 + 5x + (5 * -2 + x * -2) = 15
-20 + 5x + (-10 + -2x) = 15

Reorder the terms:
-20 + -10 + 5x + -2x = 15

Combine like terms: -20 + -10 = -30
-30 + 5x + -2x = 15

Combine like terms: 5x + -2x = 3x
-30 + 3x = 15

Solving
-30 + 3x = 15

Solving for variable 'x'.

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

Add '30' to each side of the equation.
-30 + 30 + 3x = 15 + 30

Combine like terms: -30 + 30 = 0
0 + 3x = 15 + 30
3x = 15 + 30

Combine like terms: 15 + 30 = 45
3x = 45

Divide each side by '3'.
x = 15

Simplifying
x = 15

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