7a-7=28a

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Solution for 7a-7=28a equation:


Simplifying
7a + -7 = 28a

Reorder the terms:
-7 + 7a = 28a

Solving
-7 + 7a = 28a

Solving for variable 'a'.

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

Add '-28a' to each side of the equation.
-7 + 7a + -28a = 28a + -28a

Combine like terms: 7a + -28a = -21a
-7 + -21a = 28a + -28a

Combine like terms: 28a + -28a = 0
-7 + -21a = 0

Add '7' to each side of the equation.
-7 + 7 + -21a = 0 + 7

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

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

Divide each side by '-21'.
a = -0.3333333333

Simplifying
a = -0.3333333333

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