7=7x+3(5x-13)

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Solution for 7=7x+3(5x-13) equation:


Simplifying
7 = 7x + 3(5x + -13)

Reorder the terms:
7 = 7x + 3(-13 + 5x)
7 = 7x + (-13 * 3 + 5x * 3)
7 = 7x + (-39 + 15x)

Reorder the terms:
7 = -39 + 7x + 15x

Combine like terms: 7x + 15x = 22x
7 = -39 + 22x

Solving
7 = -39 + 22x

Solving for variable 'x'.

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

Add '-22x' to each side of the equation.
7 + -22x = -39 + 22x + -22x

Combine like terms: 22x + -22x = 0
7 + -22x = -39 + 0
7 + -22x = -39

Add '-7' to each side of the equation.
7 + -7 + -22x = -39 + -7

Combine like terms: 7 + -7 = 0
0 + -22x = -39 + -7
-22x = -39 + -7

Combine like terms: -39 + -7 = -46
-22x = -46

Divide each side by '-22'.
x = 2.090909091

Simplifying
x = 2.090909091

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