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Elementary and Intermediate Algebra
Mark Dugopolski, Southeastern Louisiana University
Linear Equations in One Variable
Identities, Conditional Equations, and Inconsistent Equations

Warm-Ups



1

The equation x - x = 99 has no solution.
A)TRUE
B)FALSE
2

The equation 2n + 3n = 5n is an identity.
A)TRUE
B)FALSE
3

The equation 2y + 3y = 4y is inconsistent.
A)TRUE
B)FALSE
4

All real numbers satisfy the equation 1 ÷ x = 1/x.
A)TRUE
B)FALSE
5

The equation 5a + 3 = 0 is an inconsistent equation.
A)TRUE
B)FALSE
6

The equation 2t = t is a conditional equation.
A)TRUE
B)FALSE
7

The equation w - 0.1w = 0.9w is an identity.
A)TRUE
B)FALSE
8

The equation 0.2x + 0.03x = 8 is equivalent to 20x + 3x = 8.
A)TRUE
B)FALSE
9

The equation x/x = 1 is an identity.
A)TRUE
B)FALSE
10

The solution to 3h - 8 = 0 is 8/3.
A)TRUE
B)FALSE








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