7v^2+35-42=0

Solution for 7v^2+35-42=0 equation:

Simplifying
7v2 + 35 + -42 = 0

Reorder the terms:
35 + -42 + 7v2 = 0

Combine like terms: 35 + -42 = -7
-7 + 7v2 = 0

Solving
-7 + 7v2 = 0

Solving for variable 'v'.

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

Add '7' to each side of the equation.
-7 + 7 + 7v2 = 0 + 7

Combine like terms: -7 + 7 = 0
0 + 7v2 = 0 + 7
7v2 = 0 + 7

Combine like terms: 0 + 7 = 7
7v2 = 7

Divide each side by '7'.
v2 = 1

Simplifying
v2 = 1

Take the square root of each side:
v = {-1, 1}