What are the steps for solving 6x+2y=4

X=4-2y/6

Y=4-6x/2

Step-by-step explanation:

For X:

1) -2y

Once you subtract 2y you are left with 6x=4-2y

2) Divide by 6 on both sides to get x alone

That would give you your answer of X=4-2y/6

For Y:

1) -6x

After subtracting 6x you would have 2y=4+6x

2) Like the steps above, you divide by 2 on both sides and that would give you your answer of Y=4-6x/2

answer:

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

explanation:

service only with 20% tip  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the  

service

−−−−−−  

so technically the answer is  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

however, the intention of the question provider may have been that your answer is to be  

$

87.12

(

1

+

8

100

)

=

$

94.09

to 2 decimal places.

'

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge  

.

→

$

72.60

20% tip  

20

100

×

$

72.60

=

$

14.52

−−−−−−  

←

add

$

87.12

tax  

8

100

×

$

87.12

=

$

6.97

−−−−−  

←

add

$

94.09

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