SOLUTION: help me set up equation and solve. A farmer grows only sunflowers and flax on his 240-acre farm. This year, he planted 80 more acres of sunflower than of flax. How many acres of e

Question 837220: help me set up equation and solve.
A farmer grows only sunflowers and flax on his 240-acre farm. This year, he planted 80 more acres of sunflower than of flax. How many acres of each crop has he planted?
Answer by LinnW(1048) (Show Source): You can put this solution on YOUR website!
set f = acres of flax , s = acres of sunflowers
f + s = 240
s = f + 80
substitute (f + 80) for s in f + s = 240
f + (f + 80) = 240
2f + 80 = 240
add -80 to each side
2f = 160
divide each side by 2
f = 80
since s = f + 80 ,
s = 80 + 80
s = 160
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