Question

If 3x - 5 (80 - 2x) = 81, then find the value of x.​

Answer 1

Answer:

$3x - 400 + 10x = 81 \\ 13x = 400 + 81 \\ 13x = 481 \\ x = 481 \div 13 \\ x = 37 \\ ans$

Answer 2

Answer: x = 37

Step-by-step explanation:

3x-5 (80 - 2x)=81

→ 3x - 400 +10x = 81

→ 13x = 400+81

→ x = 481/13

→ x = 37