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crossoverking07
30.09.2019 •
Mathematics
5x+2=22 and 2x-1=7 solve these equations and show work
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Ответ:
You would have to subtract 2 from both sides of the equation. Since it is addition, you do the opposite and subtract 2 from 2 and get 0, and 2 from 22 and get 20. Then you are left with 5x= 20
To get just x equals a number, you have to divide the coefficient from the variable. You divide 5 from 5x and get x, and 5 from 20 and get 4. Your final answer should be x=4.
2x-1=7
First you have to do the opposite of the equation. You have to add 1 on to each side. Add 1 on to -1 and you are left with 0. (You count the minus 1 as negative 1) You add 1 on to 7 and get 8. Then you are left with 2x=8. You have to divide the coefficient from the variable. You divide 2 from 2x and get x, and 2 from 8 and get 4. The final answer you should get is x=4
Ответ:
1x1.1x1.1x1.1x1.1x1.1x1.1x1.1= (1.1)^7= 1.9487171 x 150=$292.31
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