Harper wrote the expression 15-6+7 to represent "15 minus the sum of 6 and 7". evaluate 15 - 6 + 7 and then exposing why harper's expression is incorrect

8

step-by-step explanation:

this is a subtraction problem.

10 - 2 = 8

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: