7[4x+9]-13=-87

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Solution for 7[4x+9]-13=-87 equation:


Simplifying
7[4x + 9] + -13 = -87

Reorder the terms:
7[9 + 4x] + -13 = -87
[9 * 7 + 4x * 7] + -13 = -87
[63 + 28x] + -13 = -87

Reorder the terms:
63 + -13 + 28x = -87

Combine like terms: 63 + -13 = 50
50 + 28x = -87

Solving
50 + 28x = -87

Solving for variable 'x'.

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

Add '-50' to each side of the equation.
50 + -50 + 28x = -87 + -50

Combine like terms: 50 + -50 = 0
0 + 28x = -87 + -50
28x = -87 + -50

Combine like terms: -87 + -50 = -137
28x = -137

Divide each side by '28'.
x = -4.892857143

Simplifying
x = -4.892857143

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