Question

1. solve for x. 1.2(3.0 - 1.2x)=- 1.44x + 3.6

Explanation:

Step1: Expand the left - hand side

$1.2\times3.0-1.2\times1.2x=-1.44x + 3.6$
$3.6-1.44x=-1.44x + 3.6$

Step2: Add $1.44x$ to both sides

$3.6-1.44x+1.44x=-1.44x + 3.6+1.44x$
$3.6=3.6$
This equation is an identity, which means $x$ can be any real number.

Answer:

$x\in R$ (where $R$ represents the set of all real numbers)