3(x-7)-3(x+5)=7+5x

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Solution for 3(x-7)-3(x+5)=7+5x equation:


Simplifying
3(x + -7) + -3(x + 5) = 7 + 5x

Reorder the terms:
3(-7 + x) + -3(x + 5) = 7 + 5x
(-7 * 3 + x * 3) + -3(x + 5) = 7 + 5x
(-21 + 3x) + -3(x + 5) = 7 + 5x

Reorder the terms:
-21 + 3x + -3(5 + x) = 7 + 5x
-21 + 3x + (5 * -3 + x * -3) = 7 + 5x
-21 + 3x + (-15 + -3x) = 7 + 5x

Reorder the terms:
-21 + -15 + 3x + -3x = 7 + 5x

Combine like terms: -21 + -15 = -36
-36 + 3x + -3x = 7 + 5x

Combine like terms: 3x + -3x = 0
-36 + 0 = 7 + 5x
-36 = 7 + 5x

Solving
-36 = 7 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
-36 + -5x = 7 + 5x + -5x

Combine like terms: 5x + -5x = 0
-36 + -5x = 7 + 0
-36 + -5x = 7

Add '36' to each side of the equation.
-36 + 36 + -5x = 7 + 36

Combine like terms: -36 + 36 = 0
0 + -5x = 7 + 36
-5x = 7 + 36

Combine like terms: 7 + 36 = 43
-5x = 43

Divide each side by '-5'.
x = -8.6

Simplifying
x = -8.6

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