9514 1404 393
Answer:
Step-by-step explanation:
When x represents the number, "the sum of 3 and a number" is (x+3). Twice that sum is 2(x+3). "Is 30" means this expression is equal to 30:
2(x +3) = 30 . . . . an equation for the given conditions
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We can solve this equation by dividing by 2:
x + 3 = 15
x = 12 . . . . . . subtract 3
The number is 12.
Answer:
No
Step-by-step explanation:
The equation would be 32 times (1/2)^x.
Linear equations won't have exponents, because this is an exponential equation.
The answer is 951,999. Now have a great day.
Answer:
Iook at the image below
Step-by-step explanation:
Hope this helps :)
