15(x + 1) + 10(x) = 30(4) - 6( 2x - 1) multiplied by 30 to clear the denominator
15x + 15 + 10x = 120 -12x + 6 distributed
25x + 15 = 126 - 12x added like terms
37x + 15 = 126 added 12x to both sides
37x = 111 subtracted 15 from both sides
x = 3 divided both sides by 37