-5x+y=6 -3x+6y=-12 Solving systems of equations by substitution
1 answer:
if you isolate y in the top equation to get y=5x+6 then you can substiture y for 5x+6 in the bottom equation because thats what y equals
as of now you have -3x+6(5x+6)=-12 but if you use the distrubite property you would get -3x+30x+36=-12
then if you subtract 36 from both sides you would get -3x+30x=-48 then combine like terms to get 27x=-48 then divide both sides by 27 to get or x≈1.8
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Answer:
Conjecture: For every number x, the result of the is 2x
Step-by-step explanation:
First Number: 8
Multiply by 88:
Add 88:
Divide by 44:
Subtract 2:
Second: 10
Multiply by 88:
Add 88:
Divide by 44:
Subtract 2:
Third: 5
Multiply by 88:
Add 88:
Divide by 44:
Subtract 2:
Fourth: 2
Multiply by 88:
Add 88:
Divide by 44:
Subtract 2:
On a general terms:
Let the number be x.
Multiply by 88:
Add 88:
Divide by 44:
Subtract 2:
Notice that for every input x, the result is 2x