Question

I need help with 3 problems.

3(3m-2)=2(3m+3)

7-3r=r-4(2+4)

6.78j-5.2+1.2j=5.53j+2.15

Answer 1

Answer:3(3m−2)=2(3m+3)

Use the distributive property to multiply 3 by 3m−2.

9m−6=2(3m+3)

Use the distributive property to multiply 2 by 3m+3.

9m−6=6m+6

Subtract 6m from both sides.

9m−6−6m=6

Combine 9m and −6m to get 3m.

3m−6=6

Add 6 to both sides.

3m=6+6

Add 6 and 6 to get 12.

3m=12

Explanation: