2q-7=21-5q

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Solution for 2q-7=21-5q equation:


Simplifying
2q + -7 = 21 + -5q

Reorder the terms:
-7 + 2q = 21 + -5q

Solving
-7 + 2q = 21 + -5q

Solving for variable 'q'.

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

Add '5q' to each side of the equation.
-7 + 2q + 5q = 21 + -5q + 5q

Combine like terms: 2q + 5q = 7q
-7 + 7q = 21 + -5q + 5q

Combine like terms: -5q + 5q = 0
-7 + 7q = 21 + 0
-7 + 7q = 21

Add '7' to each side of the equation.
-7 + 7 + 7q = 21 + 7

Combine like terms: -7 + 7 = 0
0 + 7q = 21 + 7
7q = 21 + 7

Combine like terms: 21 + 7 = 28
7q = 28

Divide each side by '7'.
q = 4

Simplifying
q = 4

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