Question

What is the value of x in the equation 7x 2y = 48 , when y = 3?

Answer 1

What is the value of x in the equation 7x + 2y = 48

Given y=3

We plug in 3 for y and solve for x

7x + 2y = 48

7x + 2(3) = 48

7x + 6 = 48 ( subtract 6 on both sides)

7x + 6 - 6 = 48 -6

7x = 42

Divide by 7 on both sides

x = 6

the value of x = 6

We can say the value of x=6 when the value of y = 3

Answer 2

2y will be known as 2(3) since y=3 so it will be 7x times 6 so the. you subtract 6 from both sides and you get 7x=42 the. you divide 7 on both sides and the answer will be 6