7(2a-5)=-21

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Solution for 7(2a-5)=-21 equation:


Simplifying
7(2a + -5) = -21

Reorder the terms:
7(-5 + 2a) = -21
(-5 * 7 + 2a * 7) = -21
(-35 + 14a) = -21

Solving
-35 + 14a = -21

Solving for variable 'a'.

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

Add '35' to each side of the equation.
-35 + 35 + 14a = -21 + 35

Combine like terms: -35 + 35 = 0
0 + 14a = -21 + 35
14a = -21 + 35

Combine like terms: -21 + 35 = 14
14a = 14

Divide each side by '14'.
a = 1

Simplifying
a = 1

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