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x*0.04+y*0.05+(13000-x-y)*0.07=705
x*0.04+y*0.05-(13000-x-y)*0.07=75
solve for x and y

theres no z to it?

im so lost...

no there is no need

as z=13000-x-y

i still dont understand how to solve it...

ok.....

now total income is the sum of income from all
so it's 1 eq
now use second condition

ugh... im never gonna get this...

try it i will help u to get it
never lose hope
always try and u will get it

ok let me try, give me a few

im not gettin it because whatever I have it is cancellin x and y

so I cant solve for neither

have u solved 2 eq which i gave u?

ok i made a mistake,
I got x=-13000, and y=9250

an z=16750
which are all probably wrong

k iet me check again

ok

(1)-(2) will give u value of z
i.e 5571.4285..

now solve others

ok now u lost me...

can somebody please help me solve this problem...

this is the same as i answered earlier