-3(1a-1)+8(1a-3)=6a+7-5a

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Solution for -3(1a-1)+8(1a-3)=6a+7-5a equation:


Simplifying
-3(1a + -1) + 8(1a + -3) = 6a + 7 + -5a

Reorder the terms:
-3(-1 + 1a) + 8(1a + -3) = 6a + 7 + -5a
(-1 * -3 + 1a * -3) + 8(1a + -3) = 6a + 7 + -5a
(3 + -3a) + 8(1a + -3) = 6a + 7 + -5a

Reorder the terms:
3 + -3a + 8(-3 + 1a) = 6a + 7 + -5a
3 + -3a + (-3 * 8 + 1a * 8) = 6a + 7 + -5a
3 + -3a + (-24 + 8a) = 6a + 7 + -5a

Reorder the terms:
3 + -24 + -3a + 8a = 6a + 7 + -5a

Combine like terms: 3 + -24 = -21
-21 + -3a + 8a = 6a + 7 + -5a

Combine like terms: -3a + 8a = 5a
-21 + 5a = 6a + 7 + -5a

Reorder the terms:
-21 + 5a = 7 + 6a + -5a

Combine like terms: 6a + -5a = 1a
-21 + 5a = 7 + 1a

Solving
-21 + 5a = 7 + 1a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-21 + 5a + -1a = 7 + 1a + -1a

Combine like terms: 5a + -1a = 4a
-21 + 4a = 7 + 1a + -1a

Combine like terms: 1a + -1a = 0
-21 + 4a = 7 + 0
-21 + 4a = 7

Add '21' to each side of the equation.
-21 + 21 + 4a = 7 + 21

Combine like terms: -21 + 21 = 0
0 + 4a = 7 + 21
4a = 7 + 21

Combine like terms: 7 + 21 = 28
4a = 28

Divide each side by '4'.
a = 7

Simplifying
a = 7

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