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Mathematics 12 Online
OpenStudy (anonymous):

Simplify the expression twenty-one minus seven times two plus nine. Show your work. Then, show how the solution is affected if addition and subtraction are not applied from left to right.

OpenStudy (anonymous):

@Jadeishere

OpenStudy (jadeishere):

21 - 7 * 2 + 9 PEMDAS 7 * 2 = 14 21 - 14 + 9 21 - 14 = 7 7 + 9 16

OpenStudy (anonymous):

21-14+9 7+9 16

OpenStudy (anonymous):

it's 21-23 not 23-21

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