10X+7-2X=91-2X

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Solution for 10X+7-2X=91-2X equation: 


Simplifying
10X + 7 + -2X = 91 + -2X

Reorder the terms:
7 + 10X + -2X = 91 + -2X

Combine like terms: 10X + -2X = 8X
7 + 8X = 91 + -2X

Solving
7 + 8X = 91 + -2X

Solving for variable 'X'.

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

Add '2X' to each side of the equation.
7 + 8X + 2X = 91 + -2X + 2X

Combine like terms: 8X + 2X = 10X
7 + 10X = 91 + -2X + 2X

Combine like terms: -2X + 2X = 0
7 + 10X = 91 + 0
7 + 10X = 91

Add '-7' to each side of the equation.
7 + -7 + 10X = 91 + -7

Combine like terms: 7 + -7 = 0
0 + 10X = 91 + -7
10X = 91 + -7

Combine like terms: 91 + -7 = 84
10X = 84

Divide each side by '10'.
X = 8.4

Simplifying
X = 8.4

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