Put the given numbers where the variables are, then do the arithmetic.
Answer:
x=5
Step-by-step explanation:
All we have to do for this equation is cross multiply. This means we multiply 7 and 5 together and 5 and x+2 together. This will make the equation 35=5(x+2). Simplify this to get 35=5x+10. Subtract 10 from both sides to get 5x=25. You want to isolate x so you have to divide both sides by 5. This will make the equation x=5.
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1.96 you would take 1.4 squared
Since it is going down a constant rate (-3) keep subtracting 3 until you get to the 30th term.
