13 less than 8R leaves 43

r=7

Step-by-step explanation:

8r-13=43

Undo!

8r = 43+13

8r=56

r=56/8

r=7

8 (7) - 13=43

R = 7

Step-by-step explanation:

13 less than 8R leaves 43.

R is the unknown.

This expression can be in an equation.

8R-13 = 43

Carry over the like terms. Carry over the - 13 and make R the subject.

8R = 43+13

8R = 56

R = 56/8

R = 7

To check if the answer was correct, replace the unknown which is R with the value of what it is in brackets. Remember brackets mean to multiply.

8 (7) - 13 = 43

56-13 = 43

Therefore the answer is 7