A- y = - 15
B- y = 1/5
C- y = 15
D- y = 75
2007-02-04 14:41:59 · 5 answers · asked by Anonymous in Education & Reference ➔ Homework Help
80 = 5y+5
75 = 5y
Divide by 5; y = 15
2007-02-04 14:46:03 · answer #1 · answered by jenh42002 7 · 1⤊ 0⤋
just comine the terms
80 = 3y + 2y + 4 + 1
combine 3y + 2y into 5y
80 = 5y + 4 + 1
combine 4+ 1 into 5
80 = 5y + 5
now subtract 5 from both sides of the equation
75 = 5y
now divide both sides of the equation by 5
15 = y
so the answer is C, y = 15
2007-02-04 22:46:24 · answer #2 · answered by ... 3 · 0⤊ 0⤋
80= 3y + 2y + 4 + 1
Combine like term: 3y + 2y = 5y and 4 + 1 = 5
80= 5y + 5
isolate y: 80= 5y + 5
subtract 5 from each side---75= 5y
divide each side by 5---15=y
Answer is C
2007-02-04 23:50:31 · answer #3 · answered by Slim 2 · 0⤊ 0⤋
y=15
since
3y+2y+4+1=80
5y+5=80
5y=80-5
5y=75
y=75/5
y=15
2007-02-04 22:46:50 · answer #4 · answered by Sam- the "big boss" 4 · 0⤊ 0⤋
C
2007-02-04 22:46:36 · answer #5 · answered by Kitty 2 · 0⤊ 0⤋