Solve each system by substitution

Y = 5
-3x + 4y = 8

1 answer

Since the first equation is already solved for y, we can substitute the value of y into the second equation.

Y = 5

-3x + 4(5) = 8

Simplifying the equation:

-3x + 20 = 8

Now, isolate x:

-3x = 8 - 20

-3x = -12

x = (-12)/(-3)

x = 4

Therefore, the solution to the system of equations is x = 4 and y = 5.