find using substitution method
0.5x+0.8y=3.4
0.6x-0.3y=0.3
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Step-by-step explanation:
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Answered by
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Step-by-step explanation:
0.5x+0.8y=3.4 ...(1)
0.6x-0.3y=0.3....(2)
taking equation (1)
0.5x+0.8y=3.4 ...(1)
0.5 x = 3.4 - 0.8 y
x = 3.4 - 0.8 y /0.5...(3)
Putting value in equation (2)
0.6x-0.3y=0.3
0.6 × 3.4 - 0.8 y /0.5-0.3y= 0.3
2.04 - 0.48 y - 0.15y / 0.5 = 0.3
2.04 - 0.33y = 0.3 × 0.5
0.33y = 0.15 - 2.04
y = -1.89 / 0.33
y = - 5.72
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