Question

Part 1: Explain, in complete sentences, how you would use the substitution method to solve the following system of equations.

Part 2: Provide the solution to the system.

2x – y = 5
x + 2y = 15

Answer 1

Solve the first equation for y and substitute that into the seocnd equation

Answer 2

part 2. y=2x-5 and substitute into the second

x+2(2x-5)=15
x+4x-10=15
5x=25
x=25/5 =5
x=5
y=2(5)-5=10-5=5

x=5
y=5