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

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


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

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

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

Combine like terms: -7x + 3x = -4x
-7 = 15 + -4x

Solving
-7 = 15 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
-7 + 4x = 15 + -4x + 4x

Combine like terms: -4x + 4x = 0
-7 + 4x = 15 + 0
-7 + 4x = 15

Add '7' to each side of the equation.
-7 + 7 + 4x = 15 + 7

Combine like terms: -7 + 7 = 0
0 + 4x = 15 + 7
4x = 15 + 7

Combine like terms: 15 + 7 = 22
4x = 22

Divide each side by '4'.
x = 5.5

Simplifying
x = 5.5

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