Obtain an equivalent system by performing the stated elementary operation on the system. Multiply the third equation by 1/8. 7x - y + 8z + w = -10 8x - z - 2w = 7 8x - 16y + 7z - w = -24 x + 3y - 8z = 1

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

she drove 134 miles

step-by-step explanation:

answer is  

c.

36

step-by-step explanation: