2006-11-27 00:01:55 · 12 answers · asked by kyle l 1 in Science & Mathematics ➔ Mathematics
-2(x + 1) = 8
-2x - 2 = 8
-2x - 2 + 2 + 8 + 2
- 2x = 10
- 2x/- 2 = 10/ - 2
x = - 5
The answer is x = - 5
Insert the x value into the equation
- - - - - - - - - -
- 2(x + 1) = 8
- 2(-5 + 1) = 8
- 2(- 4) = 8
8 = 8
- - - - - -s-
2006-11-27 01:01:38 · answer #1 · answered by SAMUEL D 7 · 0⤊ 1⤋
-2(x + 1)=8
-2x - 2=8
-2x = 10
x = -5
booyashaka
2006-11-27 00:04:44 · answer #2 · answered by computer_buyer 1 · 0⤊ 0⤋
Rewriting the equation, you have, -2x -2=8, or -2x=10, -x=5,multipling each side of the equations by -1, you have x= -5
2006-11-27 00:05:51 · answer #3 · answered by WC 7 · 0⤊ 0⤋
-2x - 2 = 8
-2x = 8 + 2
-2x = 10
x = -5
2006-11-27 00:16:08 · answer #4 · answered by akakulasa 1 · 0⤊ 0⤋
-2( x +1 ) = 8
-2X -2 =8
-2x = 10
x = -5
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2006-11-27 00:16:04 · answer #5 · answered by Anonymous · 0⤊ 0⤋
-2x -2 = 8
-2x = 8 + 2
-2x = 10
x = -5
2006-11-27 00:05:26 · answer #6 · answered by Thomas B 1 · 0⤊ 0⤋
-2(x+10)=8
divide by -2
(x+10)=-4
subtract 10
x=-14
2006-11-27 01:23:08 · answer #7 · answered by nicole 2 · 0⤊ 0⤋
-2x-2= 8
-2x= 10
2x= -10
x= -5
2006-11-27 00:06:13 · answer #8 · answered by Slimm D 3 · 0⤊ 0⤋
-2x-2=8
-2x=8+2
-2x=10
x=10/-2
x=-5
2006-11-27 00:04:11 · answer #9 · answered by nazgul_92 2 · 0⤊ 0⤋
firstly understand the basics
if an multipied number in left hand side goes to right hand side it divides the what is in right hand side same applies for reverse
if an addition in left hand side goes to right hand side it subtracts what is in right hand side same applies for reverse.
now,
-2(x+1)=8
x+1=(8/-2)
so,
x+1=-4
x=-4-1
x=-5is the answer
to check pu tx=-5 in the equation
-2(-5+1)=-2(-4)=8
so now you know how to do it.
2006-11-27 01:10:45 · answer #10 · answered by riya s 2 · 0⤊ 0⤋