2(5x-20)-(15+8x)=7

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Solution for 2(5x-20)-(15+8x)=7 equation:


Simplifying
2(5x + -20) + -1(15 + 8x) = 7

Reorder the terms:
2(-20 + 5x) + -1(15 + 8x) = 7
(-20 * 2 + 5x * 2) + -1(15 + 8x) = 7
(-40 + 10x) + -1(15 + 8x) = 7
-40 + 10x + (15 * -1 + 8x * -1) = 7
-40 + 10x + (-15 + -8x) = 7

Reorder the terms:
-40 + -15 + 10x + -8x = 7

Combine like terms: -40 + -15 = -55
-55 + 10x + -8x = 7

Combine like terms: 10x + -8x = 2x
-55 + 2x = 7

Solving
-55 + 2x = 7

Solving for variable 'x'.

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

Add '55' to each side of the equation.
-55 + 55 + 2x = 7 + 55

Combine like terms: -55 + 55 = 0
0 + 2x = 7 + 55
2x = 7 + 55

Combine like terms: 7 + 55 = 62
2x = 62

Divide each side by '2'.
x = 31

Simplifying
x = 31

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