Answer:
x=4
Step-by-step explanation:
x + 2y = 10
x + 2(3) = 10
x + 6 = 10
-6 -6
x = 4
[tex]x + 2y = 10 \\x + 2(3) = 10 \\ x + 6 = 10 \\ x = 10 - 6 \\ x = 4[/tex]
