Question

Pllllllllllllllllllllllllllllllssssssssssssssssssssssssssssssss helppp ASAP

Answer 1

Answer: substitution

Explanation:

Substitute 3 in for x for all equations.

3(3)+4 = 13

8(3)-1 = 23

3(3)+4 =13

Add all of the sides together to find the perimeter

13+23+13 =49