Zane had 7 green marbles. Then he bought 7 bags of blue marbles. There were 7 marbles in each bag. How many marbles does Zane have now?

56 marbles

Step-by-step explanation:

7*7=49

49+7= 56

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: