3a-4b-(-5a+7b)+(10-9a+8b)=

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Solution for 3a-4b-(-5a+7b)+(10-9a+8b)= equation:


Simplifying
3a + -4b + -1(-5a + 7b) + (10 + -9a + 8b) = 0
3a + -4b + (-5a * -1 + 7b * -1) + (10 + -9a + 8b) = 0
3a + -4b + (5a + -7b) + (10 + -9a + 8b) = 0

Remove parenthesis around (10 + -9a + 8b)
3a + -4b + 5a + -7b + 10 + -9a + 8b = 0

Reorder the terms:
10 + 3a + 5a + -9a + -4b + -7b + 8b = 0

Combine like terms: 3a + 5a = 8a
10 + 8a + -9a + -4b + -7b + 8b = 0

Combine like terms: 8a + -9a = -1a
10 + -1a + -4b + -7b + 8b = 0

Combine like terms: -4b + -7b = -11b
10 + -1a + -11b + 8b = 0

Combine like terms: -11b + 8b = -3b
10 + -1a + -3b = 0

Solving
10 + -1a + -3b = 0

Solving for variable 'a'.

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

Add '-10' to each side of the equation.
10 + -1a + -10 + -3b = 0 + -10

Reorder the terms:
10 + -10 + -1a + -3b = 0 + -10

Combine like terms: 10 + -10 = 0
0 + -1a + -3b = 0 + -10
-1a + -3b = 0 + -10

Combine like terms: 0 + -10 = -10
-1a + -3b = -10

Add '3b' to each side of the equation.
-1a + -3b + 3b = -10 + 3b

Combine like terms: -3b + 3b = 0
-1a + 0 = -10 + 3b
-1a = -10 + 3b

Divide each side by '-1'.
a = 10 + -3b

Simplifying
a = 10 + -3b

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