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CaHeK987 [17]
2 years ago
7

3y - 2x = -15 and x = -6y

Mathematics
2 answers:
Anastasy [175]2 years ago
6 0

Answer:

X=6, Y=-1

Solved using substitution

MArishka [77]2 years ago
5 0

Answer:

y =  - 1

Step-by-step explanation:

3y - 2( - 6y) =  - 15

Simplify both sides

3y + 12y =  - 15

Combine Like terms

15y =  - 15

Divide both sides by 15

y =  - 1

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       6.2

<u>x    0.0</u><u>3</u>

           6

    1

       6.2

<u>x    0.0</u><u>3</u>     since 6*3=18, we have to carry the 1

        86

     1

       6.2

<u>x    0.0</u><u>3</u>

       186

       6.2

<u>x    0.</u><u>0</u><u>3</u>

        186

         0

       6.2

<u>x    0.</u><u>0</u><u>3</u>

       186

       00

       6.2

<u>x    </u><u>0</u><u>.03</u>

       186

       00

      0

       6.2

<u>x    </u><u>0</u><u>.03</u>

        186

+      00            add the partial products

<u>      0</u><u>0                   </u>

     00186

      6.2

<u>x    0.</u><u>03</u><u>     </u>                   count how many digits are after the decimal point      from each factor =3 and place in product

        186

+      00            

<u>      00                   </u>

     00.186=0.186

<em>answer=0.186</em>

8 0
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