3(7a-5)=

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

Simplifying
3(7a + -5) = 0

Reorder the terms:
3(-5 + 7a) = 0
(-5 * 3 + 7a * 3) = 0
(-15 + 21a) = 0

Solving
-15 + 21a = 0

Solving for variable 'a'.

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

Add '15' to each side of the equation.
-15 + 15 + 21a = 0 + 15

Combine like terms: -15 + 15 = 0
0 + 21a = 0 + 15
21a = 0 + 15

Combine like terms: 0 + 15 = 15
21a = 15

Divide each side by '21'.
a = 0.7142857143

Simplifying
a = 0.7142857143