Which equation is an identity?
a.3(x – 1) = x + 2(x + 1) + 1
b. x – 4(x + 1) = –3(x + 1) + 1
c.2x + 3 = 1/2 (4x + 2) + 2
d.1.3(6x – 3) = 3(x + 1) – x – 2

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:

both graphs increase on their domain

neither graph has a y-intercept

step-by-step explanation:

the following points can be visualized easily from the graph