Question

ax + r = 7 for r

Answer 1

ax is being added on the left side, so what would you do to the equation to move it to the other side?

Answer 2

I understand now, but your answer is wrong we have to Subtracting ax from both sides. not adding them.

Answer 3

My bad i shouldve been more clear.

yes its being added to the LEFT hand side, so you would subtract it from both sides

so ya got

r=7-ax