Answer:
Step 1 was the first mistake
Step-by-step explanation:
7a = 28
7a/7 = 28/7
a = 4
Step 1
You should isolate the variable, not try to get rid of it. Also, you have to divide both sides by the same number or variable(can't divide one side by a and the other side by 7- it has to be the same).
75
Let number of weeks be x
10x = 200-150
x=50/10
x=5
Thus it would take him 5 weeks to buy himself a iPhone12
Hope it helps
2/6 And 4/12
both simplified equals 1/3.
