Answer:
2x = 10
Step-by-step explanation:
7 + 3x = 22
-7 -7
Subtract 7 from both sides (you are trying to get the variable alone, and to do that, you have to get every other number to 0. <em>7 - 7 = 0</em>. BUT, whatever you do, you have to do to both sides.)
3x = 15
/3 /3
Divide both sides by three to get the variable alone.
x = 5
Now, plug in the value of x to the second equation and solve.
2(5) = ? --> 10
Answer:
I believe the answer is D
Step-by-step explanation:
Inverse proportion occurs when one value increases and the other decreases
D is the answer because as each cat eats the same amount of dry cat food, there is less dry cat food in the bag; so this is why D best answers the question.
Hope this helps!
-35 + 28x = 21
28x = 56
x = 2
Answer: D
Step-by-step explanation:
To find the difference, we want to make sure both denominators are equal.
Now that the denominators are equal, we can distribute and multiply out.
With the fractions multiplied out, we can actually put it into one large fraction.
Let's subtract the top expression.
This may seem like our final answer, but we can actually factor out an 3x in the numerator and denominator.
With the 3x factored out, they cancel out because 3x/3x=1.
Our final answer is:
