Question

Three times a number decreased by twenty is equal to ten more than eight times the number.find the number.

Answer 1

Let number be x

acc to the statement we form an equation

3x-20=10+8x

3x-8x=10+20

-5x=30

x=30/-5

x=-6

Therefore the number is -6

Answer 2

Step-by-step explanation:

let a number be x

thrice times x decreased by twenty is 3x-20

10 more than eight times x is 10+8x

according to condition

》3x-20=10+8x

》3x-8× = 10 +20

》-5x=30

》x = 30/-5

》x= -6

thus, the required number is-6