15=21q+4+3

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Solution for 15=21q+4+3 equation:


Simplifying
15 = 21q + 4 + 3

Reorder the terms:
15 = 4 + 3 + 21q

Combine like terms: 4 + 3 = 7
15 = 7 + 21q

Solving
15 = 7 + 21q

Solving for variable 'q'.

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

Add '-21q' to each side of the equation.
15 + -21q = 7 + 21q + -21q

Combine like terms: 21q + -21q = 0
15 + -21q = 7 + 0
15 + -21q = 7

Add '-15' to each side of the equation.
15 + -15 + -21q = 7 + -15

Combine like terms: 15 + -15 = 0
0 + -21q = 7 + -15
-21q = 7 + -15

Combine like terms: 7 + -15 = -8
-21q = -8

Divide each side by '-21'.
q = 0.380952381

Simplifying
q = 0.380952381

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