6(2-5a)-8(-a+1)=-7

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Solution for 6(2-5a)-8(-a+1)=-7 equation:


Simplifying
6(2 + -5a) + -8(-1a + 1) = -7
(2 * 6 + -5a * 6) + -8(-1a + 1) = -7
(12 + -30a) + -8(-1a + 1) = -7

Reorder the terms:
12 + -30a + -8(1 + -1a) = -7
12 + -30a + (1 * -8 + -1a * -8) = -7
12 + -30a + (-8 + 8a) = -7

Reorder the terms:
12 + -8 + -30a + 8a = -7

Combine like terms: 12 + -8 = 4
4 + -30a + 8a = -7

Combine like terms: -30a + 8a = -22a
4 + -22a = -7

Solving
4 + -22a = -7

Solving for variable 'a'.

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

Add '-4' to each side of the equation.
4 + -4 + -22a = -7 + -4

Combine like terms: 4 + -4 = 0
0 + -22a = -7 + -4
-22a = -7 + -4

Combine like terms: -7 + -4 = -11
-22a = -11

Divide each side by '-22'.
a = 0.5

Simplifying
a = 0.5

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