Answer:
-1 3/8 and -1.375
Explanation:
To solve for x in the equation -2.25 + 0.4x = -2.8, we can start by isolating the variable term (0.4x) on one side of the equation:
-2.25 + 0.4x = -2.8
0.4x = -2.8 + 2.25
0.4x = -0.55
Next, we can divide both sides by 0.4 to solve for x:
x = -0.55 / 0.4
x = -1.375
As a mixed number, -1.375 can be written as:
-1 3/8
As a decimal, -1.375 is already in decimal form.