2(8x+9)+-(x+8)=78

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Solution for 2(8x+9)+-(x+8)=78 equation: 


Simplifying
2(8x + 9) + -1(x + 8) = 78

Reorder the terms:
2(9 + 8x) + -1(x + 8) = 78
(9 * 2 + 8x * 2) + -1(x + 8) = 78
(18 + 16x) + -1(x + 8) = 78

Reorder the terms:
18 + 16x + -1(8 + x) = 78
18 + 16x + (8 * -1 + x * -1) = 78
18 + 16x + (-8 + -1x) = 78

Reorder the terms:
18 + -8 + 16x + -1x = 78

Combine like terms: 18 + -8 = 10
10 + 16x + -1x = 78

Combine like terms: 16x + -1x = 15x
10 + 15x = 78

Solving
10 + 15x = 78

Solving for variable 'x'.

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

Add '-10' to each side of the equation.
10 + -10 + 15x = 78 + -10

Combine like terms: 10 + -10 = 0
0 + 15x = 78 + -10
15x = 78 + -10

Combine like terms: 78 + -10 = 68
15x = 68

Divide each side by '15'.
x = 4.533333333

Simplifying
x = 4.533333333

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