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Secondary 1 | Maths
2 Answers Below
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Date Posted: 2 years ago
Views: 226
① → 3x+2y = 48 ③
② → 9x-10y = -12 ④
3 × ③ - ④ →
16y = 3×48+12
y = (3×48+12)÷16 = 9.75 (Ans)
① → 3x+2y = 48
x = 16-⅔×9.75 = 9.5 (Ans)
② → 9x-10y = -12 ④
3 × ③ - ④ →
16y = 3×48+12
y = (3×48+12)÷16 = 9.75 (Ans)
① → 3x+2y = 48
x = 16-⅔×9.75 = 9.5 (Ans)
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done
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x = 9.5
y = 9.75
y = 9.75
Date Posted:
2 years ago
done
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Try
Eliminating method
Eliminating method
Date Posted:
2 years ago
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