7X+8=21-6X

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Solution for 7X+8=21-6X equation:


Simplifying
7X + 8 = 21 + -6X

Reorder the terms:
8 + 7X = 21 + -6X

Solving
8 + 7X = 21 + -6X

Solving for variable 'X'.

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

Add '6X' to each side of the equation.
8 + 7X + 6X = 21 + -6X + 6X

Combine like terms: 7X + 6X = 13X
8 + 13X = 21 + -6X + 6X

Combine like terms: -6X + 6X = 0
8 + 13X = 21 + 0
8 + 13X = 21

Add '-8' to each side of the equation.
8 + -8 + 13X = 21 + -8

Combine like terms: 8 + -8 = 0
0 + 13X = 21 + -8
13X = 21 + -8

Combine like terms: 21 + -8 = 13
13X = 13

Divide each side by '13'.
X = 1

Simplifying
X = 1

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