well u move all the variables to the left side, so 8x is already in the left but 7x isnt so you move 7x to the left side of the equal sign which makes 7x to -7x.
8x-2-7x=-9
you move the -2 to the right side of the equal sign which becomes +2.
8x-7x=-9+2
you do the math which 8x-7x=1x and -9+2=-7
so.... 1x=-7
and x=-7. Make sure to always combine like terms.
To make sure it is correct replace the x with the -7 and
8(-7)-2=-9+7(-7)
-56-2=-9-49
-58=-58
so x= -7
13
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15
Answer:
The answer is 9, I'm currently taking the test on PLATO
Step-by-step explanation:
Answer:
2/3
Step-by-step explanation:
i don't know how to explain it, but this is the answer :) good luck
Answer: $47.70
Step-by-step explanation: You just have to do is $15.90 times 3 and you got your answer. Also, have a Happy New year!
Hi there! :) The answer of your question is 0.32 or 32%. I got the answer because I divided 92/280=0.32. I hope this is the right answer.
Hope I helped! :D
Answer:
Step-by-step explanation:
The vertex form of the equation of a parabola is:
Where (h,k) is the vertex.
To obtain this form, we need to complete the square:
Move the 3 to the other side of the equation:
Add this value to both sides of the equation:
Then, rewriting:
Finally, we must solve for "y", getting the equation of the parabola in vertex form: