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3 years ago

−6x + 5y = 16x + 4y = −10

Mathematics

2 answers:

sp2606 [1]3 years ago

5 0

Answer:

$X=-\frac{5}{52}$

Step-by-step explanation:

$-6x+5y=16x+4y=-10\\Let\\-6x+5y=-10(1)\\16x+4y=-10(2)\\8(1)+3(2):\\48x+48x+40y+12y=-80-30\\52y=-110\\y= -\frac{110}{52} =-\frac{55}{26}$

replace y into (1):

$-6x+5(-\frac{55}{26})=-10\\-6x=-10-5(-\frac{55}{26} \\x= -\frac{5}{52}$

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sashaice [31]3 years ago

3 0

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