Answer: [tex]m=9[/tex]
Step-by-step explanation:
Step 1: Subtract 8 from both sides: [tex]7m+8-8=71-8[/tex]
[tex]7m=63[/tex]
Step 2: Divide both sides by 7: [tex]7m/7=63/7[/tex]
Get your answer: [tex]m=9[/tex]