8(x+3)+4(12+x)=90

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Solution for 8(x+3)+4(12+x)=90 equation:


Simplifying
8(x + 3) + 4(12 + x) = 90

Reorder the terms:
8(3 + x) + 4(12 + x) = 90
(3 * 8 + x * 8) + 4(12 + x) = 90
(24 + 8x) + 4(12 + x) = 90
24 + 8x + (12 * 4 + x * 4) = 90
24 + 8x + (48 + 4x) = 90

Reorder the terms:
24 + 48 + 8x + 4x = 90

Combine like terms: 24 + 48 = 72
72 + 8x + 4x = 90

Combine like terms: 8x + 4x = 12x
72 + 12x = 90

Solving
72 + 12x = 90

Solving for variable 'x'.

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

Add '-72' to each side of the equation.
72 + -72 + 12x = 90 + -72

Combine like terms: 72 + -72 = 0
0 + 12x = 90 + -72
12x = 90 + -72

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

Divide each side by '12'.
x = 1.5

Simplifying
x = 1.5

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