Answer:
x (number of glass of milk) =11, and y (number of snack bar) =12
Step-by-step explanation:
4x+3y=80
3x+4y=81
Answer:
Step-by-step explanation:
For this case we have the following equation:
From here, we must clear the value of y.
For this, we follow the following steps:
1) we add 3.4 on both sides of the equation:
2) We rewrite the right side of the equation:
3) We do the algebraic sum of the left side of the equation:
Therefore, the solution of the equation is:
Answer:
y = -9.3