210-3(90)=x

Solution for 210-3(90)=x equation:

Simplifying
210 + -3(90) = x

Multiply -3 * 90
210 + -270 = x

Combine like terms: 210 + -270 = -60
-60 = x

Solving
-60 = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-60 + -1x = x + -1x

Combine like terms: x + -1x = 0
-60 + -1x = 0

Add '60' to each side of the equation.
-60 + 60 + -1x = 0 + 60

Combine like terms: -60 + 60 = 0
0 + -1x = 0 + 60
-1x = 0 + 60

Combine like terms: 0 + 60 = 60
-1x = 60

Divide each side by '-1'.
x = -60

Simplifying
x = -60