![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The equation is a + 5.7 = 9.2.
\Apply subtraction property of equality: If a = b then a ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=90a2dffa4cf28836c23bfcd658a94d29.png\")
b = b c.
a + 5.7 ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c7a8c800d2df7d176b09fff75181eb8f.png\")
5.7 = 9.2 5.7 (Subtract 5.7 from each side)
a = 9.2 5.7 (Apply additive inverse property: 5.7 5.7 = 0)
a = 3.5 (Subtract: 9.2 5.7 = 3.5)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
Check:
\To check the solution, substitute a = 3.5 in original equation.
\a + 5.7 = 9.2![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cf88eb4b75e2e087ff1d68b5148e102c.png\")
3.5 + 5.7 = 9.2
9.2 = 9.2 (Add: 3.5 + 5.7 = 9.2)
\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_a_plus_5_7_equal_9_2.gif\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The value of a = 3.5.