Question

A student worked out an equation and below is his solution. is the answer correct? If not, where was the error and what is the correct answer?

-4(6-r)=12
-24-4R=12
-4R=36
R=-9

Answer 1

His answer is wrong.

Explanation:

-4(6-R)=12 <-- Since R is negative, -4 times -R results in a positive so, 4R.

-24+4R=12

+24 +24

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4R = 36

R= 9