Write an equation and solve it for each case below. Let [tex]x[/tex] be the variable, representing an integer.
a. A number added to -4 equals -1.
b. A number subtracted from 5 gives an answer of -2.
c. -7 minus a number equals -10.
Answer (2)
− 4 + x = − 1 x = 3 5 − x = − 2 − x = − 7 x = 7 − 7 − x = − 10 − x = − 3 x = 3
The equations based on the scenarios yield the following results: In part a, the number is 3; in part b, the number is 7; and in part c, the number is also 3.
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