Given: x + y = 10.
If x = -21, what is y?

31.

Step-by-step explanation:

-21 + 31 = 10

x + y = 10

y = 31

it should be a and d. lmk if i'm wrong xd

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: