Question

UESTION 4

1
A certain number multiplied by five and then two subtracted,
the answer is seventy-seven. Find the number​

Answer 1

5x - 2 = 77

x = 15.8

Explanation:

a number - x

times 5 - 5x

minus 2 - 5x - 2

equals 77 - 5x - 2 = 77

77 + 2 = 79

79 ÷ 5 = 15.8

5(15.8) - 2 = 77

Answer 2

x = 15.8

Explanation:

let the number be x

according to the question equation is

x*5 - 2 = 77

5x - 2 = 17

5x = 77 + 2

5x = 79

x = 79/5

x = 15.8