Evaluate the following expressions by following the rules ( 9 - 2 ) + ( 3 x 21 )

2
by wyng245
70
70
70

2016-07-21T20:29:36+08:00

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(9-2)+(3x21)
= (9-2)+63
= 7+63
= 70
Mdas yan..
pemdas siguro
pmdas siguro
70 yey
pmdas (no exponent)
2016-07-21T20:45:05+08:00

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
( 9 - 2 ) + ( 3 x 21)
= 7 + (3 x 21)
= 7 + 63
= 70
her solution is wrong but her/his answer is correct:
the correct solution is ( 9 - 2 ) + ( 3 x 21)
= (9 - 2) + 63
= 7 + 63
= 70
you need to multiply first after subtract to follow the rules.....
of pmdas
Rosemarie correctly used the rule on operation or PMDAS. Her solution yields the same answer. Even if she evaluates the first expression in parenthesis (sum), then the product, it's still the same as long as these operation are not on the same breath (that is, no parenthesis).