Solve two step equations 18=-1/2x-7

X=-50

Step-by-step explanation:

18=-1/2x-7

-1/2x=18+7 this is first step

X=25/(-1/2) the 2nd step

X=-50

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

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step-by-step explanation: