7a-4+2a=2a-2

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Solution for 7a-4+2a=2a-2 equation:


Simplifying
7a + -4 + 2a = 2a + -2

Reorder the terms:
-4 + 7a + 2a = 2a + -2

Combine like terms: 7a + 2a = 9a
-4 + 9a = 2a + -2

Reorder the terms:
-4 + 9a = -2 + 2a

Solving
-4 + 9a = -2 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
-4 + 9a + -2a = -2 + 2a + -2a

Combine like terms: 9a + -2a = 7a
-4 + 7a = -2 + 2a + -2a

Combine like terms: 2a + -2a = 0
-4 + 7a = -2 + 0
-4 + 7a = -2

Add '4' to each side of the equation.
-4 + 4 + 7a = -2 + 4

Combine like terms: -4 + 4 = 0
0 + 7a = -2 + 4
7a = -2 + 4

Combine like terms: -2 + 4 = 2
7a = 2

Divide each side by '7'.
a = 0.2857142857

Simplifying
a = 0.2857142857

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