Step-by-step explanation:
3x=28+y
x=28+y÷3
then puttingx=28+y÷3
3x=14+y
3(28+y÷3)+y=14
84+3y+3y=42
3y+3y=42-84
y=-42÷6
y=7
so putting y=-7
3x-y=28
3x-7=38
x=38+7÷3
x=15
Answer:
Succulents=8
Cacti=7
Step-by-step explanation:
x will be how much succulents he bought and y would be how many cacti he bought.
x+y=15. Since he bought 15 plants.
2x+y=23
x=8
y=7
Answer:
-2 and 1/6
Step-by-step explanation:
you would first make both mixed numbers into improper fractions( 31/6-22/3). the you would find a common denomonator for both. (which is 6) then you solve.(31/6-44/6) and you get -13/6. then you can change it back to a mixed number -2 and 1/6
Answer:1 and 1/2
Step-by-step explanation: