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celia uses the steps below to solve the equation -3/8(-8-16d)+2d=24
step 1 dis...
Mathematics, 04.02.2020 19:50 masonballard7266
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celia uses the steps below to solve the equation -3/8(-8-16d)+2d=24
step 1 distribute -3/8 over the expression in parentheses.
3-16d+2d=24
step 2 simplify like terms.
3-14d=24
step 3 subtract 3 from both sides of the equation.
-14d=21
step 4 divide both sides of the equation by –14.
d=21/-14=-3/2=-1 1/2
which corrects the error in the step in which celia made the first error?
in step 1, she should have also distributed -3/8 over 2d, to get 3-16d+(-3/4d)=24.
in step 1, she should have also distributed -3/8 over –16d, to get 3+6d+2d=24. in step 3, she should have added 3 to both sides of the equation to get -14d=27.
in step 3, she should have first divided both sides by –14 to get 3+d=24 .
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