130+110+x+(x-3)=360
Remove the parentheses around the expression x-3.
130+110+x+x-3=360
Add 110 to 130 to get 240.
240+x+x-3=360
Subtract 3 from 240 to get 237.
237+x+x=360
Since x and x are like terms, add x to x to get 2x.
237+2x=360
Since 237 does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting 237 from both sides.
2x=-237+360
Add 360 to -237 to get 123.
2x=123
Divide each term in the equation by 2.
(2x)/(2)=(123)/(2)
Simplify the left-hand side of the equation by canceling the common terms.
x=(123)/(2)