2a-(-3a)-7+8b-b+(-2b)=

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Solution for 2a-(-3a)-7+8b-b+(-2b)= equation:


Simplifying
2a + -1(-3a) + -7 + 8b + -1b + (-2b) = 0

Remove parenthesis around (-3a)
2a + -1 * -3a + -7 + 8b + -1b + (-2b) = 0

Multiply -1 * -3
2a + 3a + -7 + 8b + -1b + (-2b) = 0

Reorder the terms:
-7 + 2a + 3a + 8b + -1b + (-2b) = 0

Combine like terms: 2a + 3a = 5a
-7 + 5a + 8b + -1b + (-2b) = 0

Combine like terms: 8b + -1b = 7b
-7 + 5a + 7b + (-2b) = 0

Combine like terms: 7b + (-2b) = 5b
-7 + 5a + 5b = 0

Solving
-7 + 5a + 5b = 0

Solving for variable 'a'.

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

Add '7' to each side of the equation.
-7 + 5a + 7 + 5b = 0 + 7

Reorder the terms:
-7 + 7 + 5a + 5b = 0 + 7

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

Combine like terms: 0 + 7 = 7
5a + 5b = 7

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

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

Divide each side by '5'.
a = 1.4 + -1b

Simplifying
a = 1.4 + -1b

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