I need help with this problem, you have to cross multiply

simplified

2x^2 + 5x - 3 /12x + 36 = 72/12x + 36

Step-by-step explanation:

not exactly cross-multiplying:

1) multiply the denominators on both sides

(2x-1)(x+3)/12(x+3) = 6 * 12/12(x+3)

2x^2 + 6x - x -3/12x + 36 = 72/12x + 36

2x^2 + 5x - 3/12x + 36 = 72/12x + 36

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!

do i do it on a graph?

step-by-step explanation: