.........plz help...........

Answer:
7=2+r
Step-by-step explanation:
basic algebra, can u mark brainliest answer please?
Answer:
2 + r = 7
Step-by-step explanation:
The left side has 7 1's , that is 7
The right side has 2 1's and r , that is 2 + r
Thus
2 + r = 7