5 (x+3) = 4 (x-4)
2006-11-01 11:30:44 · 6 answers · asked by scott c 1 in Science & Mathematics ➔ Mathematics
5 (x+3) = 4 (x-4)
5x + 15 = 4x - 16
x= -31
2006-11-01 11:33:19 · answer #1 · answered by Anonymous · 3⤊ 0⤋
You have to use the distributive property. 5*x and 5*3= 5X + 15. Then, you have 4*X and 4*-4, which =4x -16..now coombine like terms;
5x-4x=-16-15..you are left with X= -31
2006-11-01 11:45:50 · answer #2 · answered by wizardburg28 3 · 0⤊ 0⤋
x= -31
2006-11-01 11:54:19 · answer #3 · answered by Storm P 2 · 0⤊ 0⤋
-31=x
2006-11-01 11:47:17 · answer #4 · answered by arlo_north 1 · 0⤊ 0⤋
you have to distribute the multiplication, and then add like numbers.
5(x) +5(3)=4(x)-4(4)
5x +15=4x-16
5x-4x=-16-15
i think you can get it from there :)
2006-11-01 11:35:57 · answer #5 · answered by Syd 5 · 1⤊ 0⤋
x=31 XD
2006-11-01 11:35:14 · answer #6 · answered by Jackie 2 · 0⤊ 1⤋