What is the solution to the equation?

a + (–0.4) = –3

a =

Question

What is the solution to the equation?
 
a + (–0.4) = –3

             a =

lolacole12 · Answer

Let's solve your equation step-by-step.
a−0.4=−3a
Step 1: Add 3a to both sides.
a−0.4+3a=−3a+3a
4a−0.4=0
Step 2: Add 0.4 to both sides.
4a−0.4+0.4=0+0.4
4a=0.4
Step 3: Divide both sides by 4.
4a
4
=
0.4
4
a=0.1
Answer:
a=0.1

mathmale · Answer

Too bad you've chosen that user name.  Next time, try one that's more positive (e. g., Avidlearner).

You need to find a such that the equation is true.

a + (–0.4) = –3

             a =

anonymous · Answer

@Juliusmattos12  can you help

mathmale · Answer

First, rewrite (+)(-) as ONE sign.  Ditch  the parentheses.

lolacole12 · Answer

A=0.1

anonymous · Answer

oh ya like mathmale :(

lolacole12 · Answer

Ok bye

mathmale · Answer

Ya, lilke mathmale   :)


Do the necessary work to change the (+)(-) to just one sign

mathmale · Answer

a + (–0.4) = –3

             a =

mathmale · Answer

Hint:  +(-0.4) = ??

skullpatrol · Answer

Add 0.4 to each side of the equation.

anonymous · Answer

not what i mean that is a bad name

mathmale · Answer

a + (–0.4) = –3

             become a - 0.4 = -3.

Please follow skullpatrol's suggestion now.

skullpatrol · Answer

$$\huge a + (-0.4) + 0.4 = -3 + 0.4$$