7a-a-a-a=4-a

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


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

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

Combine like terms: 6a + -1a = 5a
5a + -1a = 4 + -1a

Combine like terms: 5a + -1a = 4a
4a = 4 + -1a

Solving
4a = 4 + -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
4a + a = 4 + -1a + a

Combine like terms: 4a + a = 5a
5a = 4 + -1a + a

Combine like terms: -1a + a = 0
5a = 4 + 0
5a = 4

Divide each side by '5'.
a = 0.8

Simplifying
a = 0.8

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