42=-30x

Solution for 42=-30x equation:

Simplifying
42 = -30x

Solving
42 = -30x

Solving for variable 'x'.

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

Add '30x' to each side of the equation.
42 + 30x = -30x + 30x

Combine like terms: -30x + 30x = 0
42 + 30x = 0

Add '-42' to each side of the equation.
42 + -42 + 30x = 0 + -42

Combine like terms: 42 + -42 = 0
0 + 30x = 0 + -42
30x = 0 + -42

Combine like terms: 0 + -42 = -42
30x = -42

Divide each side by '30'.
x = -1.4

Simplifying
x = -1.4