From the second:
2x-y=4
x=(4+y)/2 and applying this to first:
4+y+3y=12
4y+4=12
4y=8
y=2 and since x=(4+y)/2, x=3 so
x+y=2+3=5
1: multiple both sides by 2
Ex:-7n+10=-32
2: subtract 10 from both sides
Ex: -7n=-42
3:divide both sides by -7 to get n alone
Ex: n=6
Answer is 6 and the process is elimination!
So 6^2 would be 36 because it is 6 times 6 and then -4 so 36-4=32
Answer:
$454.5
Step-by-step explanation:
Current balance: -$25.50
Initial deposit: $120
Total deposit: $120 * 4 months = $480
Total balance: -$25.50 + $480 = $454.50
