I think adding because ur adding the two things together
Answer:
7
Step-by-step explanation:
I need this to be 20 characters oof
(1 2/5)(x)=7
Simplify both sides of the equation.
7/5x=7
Multiply both sides by 5/7.
(5/7)*(7/5x)=(5/7)*(7)
x=5
x => Hamburgers
y => Hot dogs
x + y = 26
3.5x + 2y = 70
-2x - 2y = -52
3.5x + 2y = 70
-----------------------
1.5x = 18
x = 18 / 1.5 = 12
y = 26 - 12 = 14
They sold 12 hamburgers and 14 hot dogs