monkey36 monkey36

04-09-2016
Mathematics

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can someone help me do this ?how do i solve for Y

can someone help me do this how do i solve for Y class=

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apologiabiology apologiabiology

04-09-2016

7x+5y=20
move y by itself

7x+5y=20
minus 7x from both sides
7x-7x+5y=20-7x
0+5y=20-7x
5y=20-7x
divide both sides by 5
5y/5=(20-7x)/5
y=(20-7x)/5
y=(20/5)+(-7x/5)
[tex]y=4- \frac{7x}{5} [/tex]

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