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yes

i need help please

x+y = 10
.1x + .4y = (.25)10

7.5

?? what about 7.5
solve system using substitution
y = 10-x
--> .1x +.4(10-x) = 2.5
...
solve for x

answer is 2.5

no...show your steps so i know what you did wrong

okey 1

yes solution is (5,5)
how do you go from guessing to writing a well laid out solution ...haha