Fundamentals of Mathematics, 2008a

660 CHAPTER 11. ALGEBRAIC EXPRESSIONS AND EQUATIONS
11.6.3 Exercises
Translate each phrase or sentence to a mathematical expression or equation.
Exercise 11.6.12 (Solution on p. 687.)
A quantity less twelve.
Exercise 11.6.13
Six more than an unknown number.
Exercise 11.6.14 (Solution on p. 687.)
A number minus four.
Exercise 11.6.15
A number plus seven.
Exercise 11.6.16 (Solution on p. 687.)
A number increased by one.
Exercise 11.6.17
A number decreased by ten.
Exercise 11.6.18 (Solution on p. 687.)
Negative seven added to some number.
Exercise 11.6.19
Negative nine added to a number.
Exercise 11.6.20 (Solution on p. 687.)
A number plus the opposite of six.
Exercise 11.6.21
A number minus the opposite of ve.
Exercise 11.6.22 (Solution on p. 688.)
A number minus the opposite of negative one.
Exercise 11.6.23
A number minus the opposite of negative twelve.
Exercise 11.6.24 (Solution on p. 688.)
Eleven added to three times a number.
Exercise 11.6.25
Six plus ve times an unknown number.
Exercise 11.6.26 (Solution on p. 688.)
Twice a number minus seven equals four.
Exercise 11.6.27
Ten times a quantity increased by two is nine.
Exercise 11.6.28 (Solution on p. 688.)
When fourteen is added to two times a number the result is six.
Exercise 11.6.29
Four times a number minus twenty-nine is eleven.
Exercise 11.6.30 (Solution on p. 688.)
Three fths of a number plus eight is fty.
Exercise 11.6.31
Two ninths of a number plus one fth is forty-one.
Exercise 11.6.32 (Solution on p. 688.)
When four thirds of a number is increased by twelve, the result is ve.
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