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Basile [38]
3 years ago
11

What method most efficient to use to solve x^2+6x-7=0

Mathematics
1 answer:
mestny [16]3 years ago
3 0
Compare like terms and add
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Can someone explain to me in words how to do this problem 3x+122=22x-11
inn [45]

When you have this type of problem, you need to combine the like-terms and isolate the variable.

3x + 122 = 22x - 11

Add 11 to both sides to get rid of it

3x + 122 + 11 = 22x - 11 + 11     (-11 + 11=0)

3x + 133 = 22x

Then you would bring the 3x to the other side, so subtract 3x from both sides

3x + 133 = 22x

-3x             -3x

133 = 22x - 3x

133 = 19x

Then divide both sides by 19 to isolate x

133/19 = 19x/19

133/19 = 7, so x = 7

Hope this helps!!

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3 years ago
a patients dose of medication increased from 100mg to 150mg. What is the percent increase in medication?
lord [1]

Answer:

The answer is 50% increase. Hope this helped!

Step-by-step explanation:

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25% is 1/4 so you do 8 times 1/4 and that's 2.
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The system of equations y=-1/5x-6 and y=-2x+3 is shown in the graph below. According to the graph, what is the solution to this
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(5, -7) is the answer to your system of equations.

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