2X+87=7X-13

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Solution for 2X+87=7X-13 equation:


Simplifying
2X + 87 = 7X + -13

Reorder the terms:
87 + 2X = 7X + -13

Reorder the terms:
87 + 2X = -13 + 7X

Solving
87 + 2X = -13 + 7X

Solving for variable 'X'.

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

Add '-7X' to each side of the equation.
87 + 2X + -7X = -13 + 7X + -7X

Combine like terms: 2X + -7X = -5X
87 + -5X = -13 + 7X + -7X

Combine like terms: 7X + -7X = 0
87 + -5X = -13 + 0
87 + -5X = -13

Add '-87' to each side of the equation.
87 + -87 + -5X = -13 + -87

Combine like terms: 87 + -87 = 0
0 + -5X = -13 + -87
-5X = -13 + -87

Combine like terms: -13 + -87 = -100
-5X = -100

Divide each side by '-5'.
X = 20

Simplifying
X = 20

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