Question

PLEASE HELP ASAP Solve by substitution. Show each step of your work.

2x + y = 7

3x + 5y = 14

Answer 1

take the 1st equation and make y the subject... this can be done by subtracting 2x from both sides of the equation

y = -2x + 7

now substitute this into the 2nd equation

3x + 5(-2x + 7) = 14

the equation now has just 1 unknown

so distribute the 5
collect like terms and the solve for x

when you get x, substitute it into either of the original equations to find y

hope it helps