Answer:
a = 61
Step-by-step explanation:
Isolate the variable a by adding 40 to each side.
a = 21 + 40
a = 61
Answer:
28
Step-by-step explanation:
2+5=7
7*4=28
please mark brainlest if you can!
3
4
5
15
50
40
Explanation: the first thee are the fractions times the number in the parentheses. The last two are doing 10 divided by the fraction to get x. It's just reverse of the first three, because you have to find x in a different order, so you use division. Hope this helps.