3(5q-7)=42

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Solution for 3(5q-7)=42 equation:


Simplifying
3(5q + -7) = 42

Reorder the terms:
3(-7 + 5q) = 42
(-7 * 3 + 5q * 3) = 42
(-21 + 15q) = 42

Solving
-21 + 15q = 42

Solving for variable 'q'.

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

Add '21' to each side of the equation.
-21 + 21 + 15q = 42 + 21

Combine like terms: -21 + 21 = 0
0 + 15q = 42 + 21
15q = 42 + 21

Combine like terms: 42 + 21 = 63
15q = 63

Divide each side by '15'.
q = 4.2

Simplifying
q = 4.2

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