Which system of equations has infinitely many solutions?
1 answer:
Answer: B.
Step-by-step explanation:
Let's solve your system by elimination.
4x−2y=8;−2x+2y=6
Add these equations to eliminate y:
4x-2y=8
-2x+2y=6
2x=14
Substitute 7 for x in 4x−2y=8:
(4)(7)−2y=8
−2y+28=8 (Simplify both sides of the equation)
−2y+28+−28=8+−28 (Add -28 to both sides)
−2y=−20
−2y/−2=−20/−2 (Divide both sides by -2)
y=10
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The equation in required form is: -x+2y = 12
Step-by-step explanation:
Given equation is:
In order to convert the equation in
Multiplying both sides by 2
subtracting x from both sides
Hence,
The equation in required form is: -x+2y = 12
Keywords: Linear equation, slope
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