7=7(8x+9)

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


Simplifying
7 = 7(8x + 9)

Reorder the terms:
7 = 7(9 + 8x)
7 = (9 * 7 + 8x * 7)
7 = (63 + 56x)

Solving
7 = 63 + 56x

Solving for variable 'x'.

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

Add '-56x' to each side of the equation.
7 + -56x = 63 + 56x + -56x

Combine like terms: 56x + -56x = 0
7 + -56x = 63 + 0
7 + -56x = 63

Add '-7' to each side of the equation.
7 + -7 + -56x = 63 + -7

Combine like terms: 7 + -7 = 0
0 + -56x = 63 + -7
-56x = 63 + -7

Combine like terms: 63 + -7 = 56
-56x = 56

Divide each side by '-56'.
x = -1

Simplifying
x = -1

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