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Variables in Algebra Equations

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1.a. Carry out the following calculations in accordance with the rules of arithmetic, and also, by entering the calculations exactly in the order as written, using a calculator.
i. 27/3 x 7 + 18
ii. 8 + 20/4 -4 x 3
iii. 5 x 5 x 9 / 15 + 44 / 4
iv. 10 + / 3

Please see attachment attachment for all the questions.

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Solution Summary

This solution solves an equation for a given variable and order of math operations.

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Question 1
a)
i)27:3x7+18=63+18=81
ii) 8+20:4-4x3=8+5-12=1
iii) ...

Solution provided by:
Chris Busu, PhD (IP)
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  • BSc, University of Bucharest
  • MSc, Ovidius
  • MSc, Stony Brook
  • PhD (IP), Stony Brook
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