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77julia77 [94]
4 years ago
8

7x-4y=20 for y when x=3

Mathematics
2 answers:
viktelen [127]4 years ago
6 0
I think it is y=-.25
7*3 - 4y = 20
21 - 4y = 20
subtract 21 from each side
- 4y = - 1
divide each side by - 4
y= -.25
Snowcat [4.5K]4 years ago
5 0
 the answer to <span>7x-4y=20 for y when x=3 is y = 25 i think </span>
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