7a-8=3a-4

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Solution for 7a-8=3a-4 equation:


Simplifying
7a + -8 = 3a + -4

Reorder the terms:
-8 + 7a = 3a + -4

Reorder the terms:
-8 + 7a = -4 + 3a

Solving
-8 + 7a = -4 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
-8 + 7a + -3a = -4 + 3a + -3a

Combine like terms: 7a + -3a = 4a
-8 + 4a = -4 + 3a + -3a

Combine like terms: 3a + -3a = 0
-8 + 4a = -4 + 0
-8 + 4a = -4

Add '8' to each side of the equation.
-8 + 8 + 4a = -4 + 8

Combine like terms: -8 + 8 = 0
0 + 4a = -4 + 8
4a = -4 + 8

Combine like terms: -4 + 8 = 4
4a = 4

Divide each side by '4'.
a = 1

Simplifying
a = 1

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