21x-4=10x+7

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Solution for 21x-4=10x+7 equation:


Simplifying
21x + -4 = 10x + 7

Reorder the terms:
-4 + 21x = 10x + 7

Reorder the terms:
-4 + 21x = 7 + 10x

Solving
-4 + 21x = 7 + 10x

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
-4 + 21x + -10x = 7 + 10x + -10x

Combine like terms: 21x + -10x = 11x
-4 + 11x = 7 + 10x + -10x

Combine like terms: 10x + -10x = 0
-4 + 11x = 7 + 0
-4 + 11x = 7

Add '4' to each side of the equation.
-4 + 4 + 11x = 7 + 4

Combine like terms: -4 + 4 = 0
0 + 11x = 7 + 4
11x = 7 + 4

Combine like terms: 7 + 4 = 11
11x = 11

Divide each side by '11'.
x = 1

Simplifying
x = 1

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