Decide whether the equation is an identity, a conditional equation, or a contradiction. Give the solution set.
-$- 0.8 ( x + 3 ) + 0.1 ( x + 3 ) = - 0.7 x - 2.1$
A) Conditional; $\{ - 0.7 \}$
B) Identity; {all real numbers }
C) Contradiction; $\varnothing$
D) Conditional; $\{ - 3 \}$

Question

Quizplus · Accepted Answer

The equation simplifies to 0 = 0, which is true for all real numbers.

Decide Whether the Equation Is an Identity, a Conditional Equation −0.8(x+3)+0.1(x+3)=−0.7x−2.1- 0.8 ( x + 3 ) + 0.1 ( x + 3 ) = - 0.7 x - 2.1−0.8(x+3)+0.1(x+3)=−0.7x−2.1

Decide Whether the Equation Is an Identity, a Conditional Equation $- 0.8 ( x + 3 ) + 0.1 ( x + 3 ) = - 0.7 x - 2.1$