Step 1:
Write the two equations
x = y
x + y = 4
Step 2:
Use the substitution method
substitute x = y in equation 2
Step 3
[tex]\begin{gathered} x\text{ + y = 4} \\ \text{ y + y = 4} \\ 2y\text{ = 4} \\ \text{y = }\frac{4}{2} \\ y\text{ = 2} \end{gathered}[/tex]
Step 4:
y = 2
x = 2
Final answer
The solution is (2,2)
Graphical solution
True
