2q-51=q-30

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Solution for 2q-51=q-30 equation:


Simplifying
2q + -51 = q + -30

Reorder the terms:
-51 + 2q = q + -30

Reorder the terms:
-51 + 2q = -30 + q

Solving
-51 + 2q = -30 + q

Solving for variable 'q'.

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

Add '-1q' to each side of the equation.
-51 + 2q + -1q = -30 + q + -1q

Combine like terms: 2q + -1q = 1q
-51 + 1q = -30 + q + -1q

Combine like terms: q + -1q = 0
-51 + 1q = -30 + 0
-51 + 1q = -30

Add '51' to each side of the equation.
-51 + 51 + 1q = -30 + 51

Combine like terms: -51 + 51 = 0
0 + 1q = -30 + 51
1q = -30 + 51

Combine like terms: -30 + 51 = 21
1q = 21

Divide each side by '1'.
q = 21

Simplifying
q = 21

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