9(4-3x-4x)+8(5x+6)=15

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Solution for 9(4-3x-4x)+8(5x+6)=15 equation:


Simplifying
9(4 + -3x + -4x) + 8(5x + 6) = 15

Combine like terms: -3x + -4x = -7x
9(4 + -7x) + 8(5x + 6) = 15
(4 * 9 + -7x * 9) + 8(5x + 6) = 15
(36 + -63x) + 8(5x + 6) = 15

Reorder the terms:
36 + -63x + 8(6 + 5x) = 15
36 + -63x + (6 * 8 + 5x * 8) = 15
36 + -63x + (48 + 40x) = 15

Reorder the terms:
36 + 48 + -63x + 40x = 15

Combine like terms: 36 + 48 = 84
84 + -63x + 40x = 15

Combine like terms: -63x + 40x = -23x
84 + -23x = 15

Solving
84 + -23x = 15

Solving for variable 'x'.

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

Add '-84' to each side of the equation.
84 + -84 + -23x = 15 + -84

Combine like terms: 84 + -84 = 0
0 + -23x = 15 + -84
-23x = 15 + -84

Combine like terms: 15 + -84 = -69
-23x = -69

Divide each side by '-23'.
x = 3

Simplifying
x = 3

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