legolas1234 legolas1234

11-01-2015
Mathematics

contestada

-4(4x+4)=2(2-7x) how do u do this and you have to use WHO and check your answer by plugging it in the original equation.SHOW ALL WORK

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konrad509 konrad509

11-01-2015

[tex]-4(4x+4)=2(2-7x) \\ -16x-16=4-14x\\ -2x=20\\ x=-10\\\\ -4(4\cdot(-10)+4)=2(2-7\cdot(-10))\\ -4(-40+4)=2(2+70)\\ -4\cdot(-36)=4+140\\ 144=144[/tex]

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