Answer:
Barbara was not correct
Step-by-step explanation:
We can start by getting our variables straight so we can plug in values later.
x will be boxes of eggs
y will be the jar of mayonnaise
z will be the loaves of bread.
Then we can plug in our values
3x+y+2z=10-1.4
Plug in the euro values
3(1.2)+1.8+2z=10-1.4
Solve
3.6+1.8+2z=10-1.4
5.4+2z=8.6
Subtract 5.4 from both sides.
2x=3.2
Divide both sides by 2.
1.6
Now time to check my work.
3.6+1.8+2(1.6)=8.6
5.4+3.2=8.6
8.6=8.6
Barbara was wrong.
