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

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


Simplifying
(7x + 15) + -1(20 + -1x + -5x) = 0

Reorder the terms:
(15 + 7x) + -1(20 + -1x + -5x) = 0

Remove parenthesis around (15 + 7x)
15 + 7x + -1(20 + -1x + -5x) = 0

Combine like terms: -1x + -5x = -6x
15 + 7x + -1(20 + -6x) = 0
15 + 7x + (20 * -1 + -6x * -1) = 0
15 + 7x + (-20 + 6x) = 0

Reorder the terms:
15 + -20 + 7x + 6x = 0

Combine like terms: 15 + -20 = -5
-5 + 7x + 6x = 0

Combine like terms: 7x + 6x = 13x
-5 + 13x = 0

Solving
-5 + 13x = 0

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + 13x = 0 + 5

Combine like terms: -5 + 5 = 0
0 + 13x = 0 + 5
13x = 0 + 5

Combine like terms: 0 + 5 = 5
13x = 5

Divide each side by '13'.
x = 0.3846153846

Simplifying
x = 0.3846153846

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