If m1 = 10x + 4 and m2 = 5x - 4, find m2.
2 answers:
Answer:
8/5
Step-by-step explanation:
First you set both equations equal to eachother.10x+4=5x-4 Then you solve. First by subtracting 4 from both sides. You get 10x=5x-8. Then you subtract 5x=-8. Divide by five on both sides and you get -8/-5, which is 8/5
Answer:
-12
Step-by-step explanation:
Since m1 = 10x + 4 and m2 = 5x - 4 then we can write it as:
10x+4=5x-4
Combine the like terms:
10x-5x=-4-4
5x=-8
Divide both sides by 5
5x= -8/5
x=-8/5
Now substitute the value of x in 5x-4
= 5(-8/5) - 4
= -8-4
= -12
Thus m2 = -12....
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x+y=120_______1
x=4*y_________2
x=4y
substitute 4y for x in equation 1
`4y+y=120
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eliminate the coefficient of y
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