7-2a=-28+8a

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Solution for 7-2a=-28+8a equation:


Simplifying
7 + -2a = -28 + 8a

Solving
7 + -2a = -28 + 8a

Solving for variable 'a'.

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

Add '-8a' to each side of the equation.
7 + -2a + -8a = -28 + 8a + -8a

Combine like terms: -2a + -8a = -10a
7 + -10a = -28 + 8a + -8a

Combine like terms: 8a + -8a = 0
7 + -10a = -28 + 0
7 + -10a = -28

Add '-7' to each side of the equation.
7 + -7 + -10a = -28 + -7

Combine like terms: 7 + -7 = 0
0 + -10a = -28 + -7
-10a = -28 + -7

Combine like terms: -28 + -7 = -35
-10a = -35

Divide each side by '-10'.
a = 3.5

Simplifying
a = 3.5

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