kaliloabousjbf
24.01.2020 •
Mathematics
Look at the picture and can you explain to me how to solve the equation and using the substitution method
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Ответ:
x = 4 y = 0
Step-by-step explanation:
3x - y = 12 (i)
2x + 5y = 8(ii)
from (i)
y = 3x - 12(iii)
put (iii) in (ii)
2x + 5(3x - 12) = 8
2x + 15x - 60 = 8
17x = 68
x = 4
sub. for x in (iii)
y = 3(4) -12
y = 0
Ответ:
Can you at least add the picture?