As we have to solve for b, it means we have to isolate b
So first of all subtract from both sides
So we get
Now we need b , but its b^2 , so we can take square root on both sides.
taking square roots on both sides
Hence option B is correct
X - y = 8 and -x + y = 4 solve the equation of linear equations by substitution
1 answer:
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Answer:
d=7
Step-by-step explanation:
