15(x+y)=20(y+7)
I need the reply fast now itself please
Answers
Answered by
2
Answer:
15x-5y=140
Step-by-step explanation:
15(x+y) = 20(y+7)
15x+15y = 20y+140
15x+15y-20y = 140
15x-5y = 140
Answered by
0
Answer:
15x + 15y=20y+140
15x-5y=140
5(3x-y)=140
28=3x-y
x=28+y/3
replace the value of x in 15(x+y)
15(28+y/3+y)
15/3(28+4y)
5(28+4y)
140+4y = 20(y+7)
140+4y=20y+140
y=5
let
x=28+y/3
=28+5/3
=33/3
=11
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