21x-3=2(7x-4)+7x+5

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Solution for 21x-3=2(7x-4)+7x+5 equation:


Simplifying
21x + -3 = 2(7x + -4) + 7x + 5

Reorder the terms:
-3 + 21x = 2(7x + -4) + 7x + 5

Reorder the terms:
-3 + 21x = 2(-4 + 7x) + 7x + 5
-3 + 21x = (-4 * 2 + 7x * 2) + 7x + 5
-3 + 21x = (-8 + 14x) + 7x + 5

Reorder the terms:
-3 + 21x = -8 + 5 + 14x + 7x

Combine like terms: -8 + 5 = -3
-3 + 21x = -3 + 14x + 7x

Combine like terms: 14x + 7x = 21x
-3 + 21x = -3 + 21x

Add '3' to each side of the equation.
-3 + 3 + 21x = -3 + 3 + 21x

Combine like terms: -3 + 3 = 0
0 + 21x = -3 + 3 + 21x
21x = -3 + 3 + 21x

Combine like terms: -3 + 3 = 0
21x = 0 + 21x
21x = 21x

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

Combine like terms: 21x + -21x = 0
0 = 21x + -21x

Combine like terms: 21x + -21x = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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