Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Solve the system by substitution. x+3.5y=9.5 2x+2y=14

1 answer

To solve the system by substitution, we will first solve one of the equations for one variable and then substitute it into the other equation.

Let's solve the first equation, x + 3.5y = 9.5, for x:
x = 9.5 - 3.5y

Now we will substitute this value of x into the second equation, 2x + 2y = 14:
2(9.5 - 3.5y) + 2y = 14

Distribute the 2:
19 - 7y + 2y = 14

Combine like terms:
-5y + 19 = 14

Subtract 19 from both sides:
-5y = 14 - 19
-5y = -5

Divide by -5:
y = -5/-5
y = 1

Now substitute this value of y back into the first equation to find x:
x + 3.5(1) = 9.5
x + 3.5 = 9.5
x = 9.5 - 3.5
x = 6

Therefore, the solution to the system of equations is x = 6 and y = 1.