7x+8(x+9)=-3

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Solution for 7x+8(x+9)=-3 equation:


Simplifying
7x + 8(x + 9) = -3

Reorder the terms:
7x + 8(9 + x) = -3
7x + (9 * 8 + x * 8) = -3
7x + (72 + 8x) = -3

Reorder the terms:
72 + 7x + 8x = -3

Combine like terms: 7x + 8x = 15x
72 + 15x = -3

Solving
72 + 15x = -3

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 + 15x = -3 + -72

Combine like terms: 72 + -72 = 0
0 + 15x = -3 + -72
15x = -3 + -72

Combine like terms: -3 + -72 = -75
15x = -75

Divide each side by '15'.
x = -5

Simplifying
x = -5

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