Question

5.4 = a - (-1.8)
a =

Answer 1

did you do anything?

Answer 2

what did you try

Answer 3

i tryied adding it

Answer 4

can you show me what you did?

Answer 5

ok

Answer 6

\[5.4+-1.8\]

Answer 7

im not good at math soooooo ya but i tryied

Answer 8

eh that's not how you do it!
so first start by taking care of the two minus signs in the right hand side of the equation

Answer 9

you have to know that - times - give us +

Answer 10

so we should have \[5.4=a+1.8\]

Answer 11

got that!?

Answer 12

yup

Answer 13

next is isolating a by itself on one side of the equation
and the way to do that is to subtract 1.8 from both sides
so \[5.4\color{red}{-1.8}=a+1.8\color{red}{-1.8}\]

Answer 14

1.8-1.8 is zero we are left with a by it self and that's what we wanted
\[5.4-1.8=a\]

Answer 15

now do the subtraction

Answer 16

ok

Answer 17

don't tell me you can't do subtraction!!
5.4-1.8=?

Answer 18

3.6

Answer 19

correct!

Answer 20

so a=3.8

Answer 21

i know how to subtract

Answer 22

you see how easy that is :)

Answer 23

yes just kidding:)

Answer 24

just study hard algebra is not that hard at all :)

Answer 25

follow you logic sense

Answer 26

ok thank for all your help and teaching me how to do it

Answer 27

no problem
and welcome to open study new user :)

Answer 28

Welcome to OPEN STUDY @animelover47 :)
Just in case you want to ask another question in this subject, make sure to close this question!