5(x+4)+(7x-2)=90

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Solution for 5(x+4)+(7x-2)=90 equation:


Simplifying
5(x + 4) + (7x + -2) = 90

Reorder the terms:
5(4 + x) + (7x + -2) = 90
(4 * 5 + x * 5) + (7x + -2) = 90
(20 + 5x) + (7x + -2) = 90

Reorder the terms:
20 + 5x + (-2 + 7x) = 90

Remove parenthesis around (-2 + 7x)
20 + 5x + -2 + 7x = 90

Reorder the terms:
20 + -2 + 5x + 7x = 90

Combine like terms: 20 + -2 = 18
18 + 5x + 7x = 90

Combine like terms: 5x + 7x = 12x
18 + 12x = 90

Solving
18 + 12x = 90

Solving for variable 'x'.

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

Add '-18' to each side of the equation.
18 + -18 + 12x = 90 + -18

Combine like terms: 18 + -18 = 0
0 + 12x = 90 + -18
12x = 90 + -18

Combine like terms: 90 + -18 = 72
12x = 72

Divide each side by '12'.
x = 6

Simplifying
x = 6

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