![\"Subtraction](\"/userfiles/image/Library/subtraction_property_of_equality.gif\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The equation is 0.53 + a = 1.97.
\Apply subtraction property of equality: Subtract 0.53 from each side.
\a + 0.53 ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c7a8c800d2df7d176b09fff75181eb8f.png\")
0.53 = 1.97 - 0.53
a + 0 = 1.97 0.53 (Apply additive inverse property: 0.53 0.53 = 0)
a = 1.97 0.53 (Apply additive identity property: x + 0 = x)
a = 1.44 (Subtract: 1.970.53 = 1.44)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
Check:
\To check the solution, substitute a = 1.44 in original equation.
\0.53 + a = 1.97![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cf88eb4b75e2e087ff1d68b5148e102c.png\")
0.53+ 1.44 = 1.97
1.97 = 1.97 (Add: 0.53 + 1.44 = 1.97)
\The statement is true.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step3.JPG\")
Graph the solution on number line.
\![\"number](\"/userfiles/image/Library/Pre_Algebra/graph_of_number_line_0_53_plus_a_equal_1_97.gif\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The value of a = 1.44.