7-(a-b)-4+(3a-2b)=

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Solution for 7-(a-b)-4+(3a-2b)= equation:


Simplifying
7 + -1(a + -1b) + -4 + (3a + -2b) = 0
7 + (a * -1 + -1b * -1) + -4 + (3a + -2b) = 0
7 + (-1a + 1b) + -4 + (3a + -2b) = 0

Remove parenthesis around (3a + -2b)
7 + -1a + 1b + -4 + 3a + -2b = 0

Reorder the terms:
7 + -4 + -1a + 3a + 1b + -2b = 0

Combine like terms: 7 + -4 = 3
3 + -1a + 3a + 1b + -2b = 0

Combine like terms: -1a + 3a = 2a
3 + 2a + 1b + -2b = 0

Combine like terms: 1b + -2b = -1b
3 + 2a + -1b = 0

Solving
3 + 2a + -1b = 0

Solving for variable 'a'.

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

Add '-3' to each side of the equation.
3 + 2a + -3 + -1b = 0 + -3

Reorder the terms:
3 + -3 + 2a + -1b = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 2a + -1b = 0 + -3
2a + -1b = 0 + -3

Combine like terms: 0 + -3 = -3
2a + -1b = -3

Add 'b' to each side of the equation.
2a + -1b + b = -3 + b

Combine like terms: -1b + b = 0
2a + 0 = -3 + b
2a = -3 + b

Divide each side by '2'.
a = -1.5 + 0.5b

Simplifying
a = -1.5 + 0.5b

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