Solve this simulataneous equation :
8x + 5y = 21
7x - 3y = 11
Please solve this ASAP!! Thanks
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Answer:
y = 7.375, x = -1.98
Step-by-step explanation:
8x + 5y = 21 (eq. 1)
7x - 3y = 11 (eq. 2)
(8x + 5y = 21) x (7)
(7x - 3y = 11) x (8)
56x + 30y = 147
56x - 24y = 88
8y = 59
y= 7.375
8x + 5(7.375) = 21 (plug-in value of y)
8x = 21 - 36.875
8x = -15.875
x= -1.984375 approx. -1.98
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