X+2y=3
y=2x+14 solve the system by the substitution method

y = 4, x = -5

Step-by-step explanation:

We can solve for x

We can then substitute it into the second equation

y = 4, so we can plug that back into the first equation:

We can double check:

Since it is true, we know it works

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: