Question

PLEASE HELP ME



Solve, using the substitution method.

y = 4x + 6
5x – y = 6


There are an infinite number of solutions.
There is no solution.
(18, 12)
(12, 54)

Answer 1

We have an equation for y, so put this into the second one and we get:
5x-(4x+6)=6
x-6=6
x=12
Put this back into the first equation to get: y=4*12+6=54

The solution is (12, 54) :)

Answer 2

thanks

Answer 3

The answer is 12, 54.

y=4x+6
5x-y=6

5x-6=4x+6
Do the subtraction etc and you get x=12.

Plug that back to the first equation and you get 54.

Answer 4

thaanks