7a+8-a=3a+4

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


Simplifying
7a + 8 + -1a = 3a + 4

Reorder the terms:
8 + 7a + -1a = 3a + 4

Combine like terms: 7a + -1a = 6a
8 + 6a = 3a + 4

Reorder the terms:
8 + 6a = 4 + 3a

Solving
8 + 6a = 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 + 6a + -3a = 4 + 3a + -3a

Combine like terms: 6a + -3a = 3a
8 + 3a = 4 + 3a + -3a

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

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

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

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

Divide each side by '3'.
a = -1.333333333

Simplifying
a = -1.333333333

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