4(5x+5)-1(8-x)=-30

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Solution for 4(5x+5)-1(8-x)=-30 equation:


Simplifying
4(5x + 5) + -1(8 + -1x) = -30

Reorder the terms:
4(5 + 5x) + -1(8 + -1x) = -30
(5 * 4 + 5x * 4) + -1(8 + -1x) = -30
(20 + 20x) + -1(8 + -1x) = -30
20 + 20x + (8 * -1 + -1x * -1) = -30
20 + 20x + (-8 + 1x) = -30

Reorder the terms:
20 + -8 + 20x + 1x = -30

Combine like terms: 20 + -8 = 12
12 + 20x + 1x = -30

Combine like terms: 20x + 1x = 21x
12 + 21x = -30

Solving
12 + 21x = -30

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 21x = -30 + -12

Combine like terms: 12 + -12 = 0
0 + 21x = -30 + -12
21x = -30 + -12

Combine like terms: -30 + -12 = -42
21x = -42

Divide each side by '21'.
x = -2

Simplifying
x = -2

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