Answer:
?????????????????????????
Step-by-step explanation:
Answer:
y=3÷9
Step-by-step explanation:
2x-9y=11
or,2×7-9y=11
or,14-11=9y
or,3÷9=y
Answer:
2/5
Step-by-step explanation:
Yes very because if you use the wrong one your whole formula will turn out wrong