Question

For each given value of x, determine the value of y that gives a solution to the given linear equations in two unknowns. 3x-2y=12, x= 2, x=-5If x=2 what is y?(Simply your answer)

Answer 1

3x - 2y = 12

If x = 2, we have:

3*2 - 2y = 12

6 - 2y = 12

-2y = 12 - 6

-2y = 6

-y = 6/2

-y = 3

y = -3

For x = -5. we have:

3*(-5) - 2y = 12

-15 - 2y = 12

-2y = 12 + 15

-2y = 27

-y = 27/2

y = -27/2