3-5(-4+7a)=

Solution for 3-5(-4+7a)= equation:

Simplifying
3 + -5(-4 + 7a) = 0
3 + (-4 * -5 + 7a * -5) = 0
3 + (20 + -35a) = 0

Combine like terms: 3 + 20 = 23
23 + -35a = 0

Solving
23 + -35a = 0

Solving for variable 'a'.

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

Add '-23' to each side of the equation.
23 + -23 + -35a = 0 + -23

Combine like terms: 23 + -23 = 0
0 + -35a = 0 + -23
-35a = 0 + -23

Combine like terms: 0 + -23 = -23
-35a = -23

Divide each side by '-35'.
a = 0.6571428571

Simplifying
a = 0.6571428571