5a+2-7a-8=0

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Solution for 5a+2-7a-8=0 equation:


Simplifying
5a + 2 + -7a + -8 = 0

Reorder the terms:
2 + -8 + 5a + -7a = 0

Combine like terms: 2 + -8 = -6
-6 + 5a + -7a = 0

Combine like terms: 5a + -7a = -2a
-6 + -2a = 0

Solving
-6 + -2a = 0

Solving for variable 'a'.

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

Add '6' to each side of the equation.
-6 + 6 + -2a = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -2a = 0 + 6
-2a = 0 + 6

Combine like terms: 0 + 6 = 6
-2a = 6

Divide each side by '-2'.
a = -3

Simplifying
a = -3

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