I need some help on this problem
2006-11-08 07:07:39 · 7 answers · asked by ♥ 6 in Science & Mathematics ➔ Mathematics
-4 ( 7 x + 5 ) = -160
Distribute
-28 x - 20 = -160
Add 20 on each side
-28 x = -140
Divide by -28 on each side
x = 5
2006-11-08 07:29:52 · answer #1 · answered by Anonymous · 0⤊ 0⤋
=5
2006-11-08 15:15:55 · answer #2 · answered by Anonymous · 0⤊ 0⤋
-4(7X+5)=-160
7x +5 = -160/-4
7x + 5=40
7x=40 - 5
7x=35
x = 35/7
x = 5
2006-11-08 15:18:11 · answer #3 · answered by Anj 2 · 0⤊ 0⤋
-4(7x + 5) = -160
-28x - 20 = -160 (Add 20 to both sides)
-28x = -140 (Divide both sides by -28)
x = 5
Check:
-4(7(5) + 5) = -160
-4(35 + 5) = -160
-4(40) = -160
-160 = -160
QED
2006-11-08 15:25:41 · answer #4 · answered by CSUFGrad2006 5 · 0⤊ 0⤋
-4(7x + 5) = -160 divide both sides by -4
7x+5=40 subtract 5 from each side
7x=35 divide by 7
x=5
2006-11-08 15:10:02 · answer #5 · answered by yupchagee 7 · 2⤊ 0⤋
-28x - 20 = -160
x = 140/28 = 5
2006-11-08 15:09:52 · answer #6 · answered by luv_phy 3 · 1⤊ 0⤋
-28x-20= -160
-28x= -160 +20
-28x= -140
-28x/-28= -140/-28
x= 5
2006-11-08 15:59:47 · answer #7 · answered by packfan73 1 · 0⤊ 0⤋