SOLUTION: P=a+b+c for c E=mc^2 for c y+x=a for y 3x-y=7 for y

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Question 61039: P=a+b+c for c
E=mc^2 for c
y+x=a for y
3x-y=7 for y
Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
To solve these equations, isolate the variable to one side of the equation. To isolate the variable, "undo" or reverse the operations:
P=a+b+c
P-a-b=a+b+c-a-b
P-a-b=c
.
E=mc^2
(1/m)(E)=(1/m)(mc^2)
E/m=c^2
sqrt%28E%2Fm%29=sqrt%28c%5E2%29%29
sqrt%28E%2Fm%29=c%29%29
.
y+x=a for y
y+x-x=-x+a
y=-x+a
.
3x-y=7 for y
3x-3x-y=-3x+7
-y=-3x+7
-y/-1=(-3/-1)x+(7/-1)
y=3x-7