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

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


Simplifying
7a + -4b + -2a + 3b + 4 = 0

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

Combine like terms: 7a + -2a = 5a
4 + 5a + -4b + 3b = 0

Combine like terms: -4b + 3b = -1b
4 + 5a + -1b = 0

Solving
4 + 5a + -1b = 0

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 + 5a + -4 + -1b = 0 + -4

Reorder the terms:
4 + -4 + 5a + -1b = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 5a + -1b = 0 + -4
5a + -1b = 0 + -4

Combine like terms: 0 + -4 = -4
5a + -1b = -4

Add 'b' to each side of the equation.
5a + -1b + b = -4 + b

Combine like terms: -1b + b = 0
5a + 0 = -4 + b
5a = -4 + b

Divide each side by '5'.
a = -0.8 + 0.2b

Simplifying
a = -0.8 + 0.2b

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