3.5-3a-7b+5a=

Solution for 3.5-3a-7b+5a= equation:

Simplifying
3.5 + -3a + -7b + 5a = 0

Reorder the terms:
3.5 + -3a + 5a + -7b = 0

Combine like terms: -3a + 5a = 2a
3.5 + 2a + -7b = 0

Solving
3.5 + 2a + -7b = 0

Solving for variable 'a'.

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

Add '-3.5' to each side of the equation.
3.5 + 2a + -3.5 + -7b = 0 + -3.5

Reorder the terms:
3.5 + -3.5 + 2a + -7b = 0 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
0.0 + 2a + -7b = 0 + -3.5
2a + -7b = 0 + -3.5

Combine like terms: 0 + -3.5 = -3.5
2a + -7b = -3.5

Add '7b' to each side of the equation.
2a + -7b + 7b = -3.5 + 7b

Combine like terms: -7b + 7b = 0
2a + 0 = -3.5 + 7b
2a = -3.5 + 7b

Divide each side by '2'.
a = -1.75 + 3.5b

Simplifying
a = -1.75 + 3.5b