Solve each question. Round to the nearest tenth if necessary.
1.
7r – 7 = 2r + 18
• r = –5
• r = 5
• r = 2.2
• r = 1.2
just get all the "r" stuff alone on one side of the equation.
7r – 7 = 2r + 18
7r = 2r + 18 + 7
7r-2r = 25
5r = 25
r = 5