Question

9. Which of the following is the value of x in the solution to the

system of equations given below?
8 + 2x = 5y
4x - y = 2

A: 1
B: 2
C: 3
D: 4​

Answer 1

Hi there,

9. Which of the following is the value of x in the solution to the

system of equations given below?

8 + 2x = 5y (1)

4x - y = 2 (2)

▪ (1)

y = ( 8 + 2x ) ÷ 5

▪ (2)

4x - [( 8 + 2x ) ÷ 5] = 2

( 20x - 8 - 2x ) ÷ 5 = 2

20x - 8 - 2x = 2 × 5

20x - 2x = ( 2 × 5 ) + 8

18x = 10 + 8

18x = 18

x = 18 ÷ 18

x = 1

The answer is : A. 1

•It was nice to help you, SkullNoggin!