solve for x.
4x−5=7+4y
Add 5 to both sides.
4x−5+5=4y+7+5
4x=4y+12
Divide both sides by 4.
4x/4=4y+12/4
x=y+3
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-4K-7+5k
First. You have to plus the negative 4K in the 5K together which makes it K or
1K
So now you equation would be: k-7
Subtract $15.98, $7.99, $0.50, and 3.59 from $40.00
At least 5 coins are required:
50¢
25¢
10¢
10¢
1¢
Total portions are
5+4+3
12
One portion,
4860 / 12
405
So
5 : 4 : 3
5*405 : 4*405 : 3:405
2025 : 1620 : 1215