Question

If -2x + 3 = 7 and 3x + 1 = 5 + y, the value of y is

Answer 1

value of y is -10

Explanation:

-2x+3=7 equation 1

3x+1=5+y equation 2

by eq 1

-2x=7-3

-2x=4

x=-2

put value of x in equation 2 to get value of y

3(-2)+1=5+y

-6+1=5+y

-5=5+y

-5-5=y

y=-10