06-12-2016
Mathematics

contestada

2x-11=7x+9
how to solve

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reeseroo1221 reeseroo1221

06-12-2016

2x-11=7x+9
i would bring the -11 over to the 9. change it to 9+11. the equation is now

2x=7x+9+11
2x=7x+20

then bring the 7x over chaning it to -7x so then it is

2x-7x=20
-5x=20

then divide by -5

-5x/-5=20/-5

answer is
x=-4

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