When u=-2, put that in where you see "u". use parentheses.
-4(-2)+4x=12
-4*-2=8 ➡positive 8 since a negative times a negative is always positive
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now look for x
8+4x=12
subtract 8 from both sides. get x by itself.
-8+8+4x=12-8
4x=4➡ divide both sides by 4. a number divided by itself is 1 (unless one side is negative, then the answer is negative)
4/4=1
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x=1
I can try but what is the question.
The answer is A.
This is saying 5E-9/2E4, so it equals 2.5E-13.
Answer:
1/9 = 1/45*5
Step-by-step explanation:
When you divide by something, you multiply by its reciprocal so...
1/9 * 1/5=1/45
Now we need to know what 1/9 equals so we can divide both sides by 1/5
1/9=1/45 divided by 1/5
Again you need to multiply by its reciprocal
1/9 = 1/45*5
