Question

Use substitution to solve the system
5x+4y=32
3y-5=x

Answer 1

to the 2nd equation tells you

x = 3y - 5

so in the 1st equation replace x with 3y - 5

so you get

5(3y - 5) + 4y = 32

now distribute, collect like terms and solve for y

when you find y, substitute into either equation to find x

then you'll have the solution