100 Must Know Sight Words: First Learning for Kids and Toddlers, Great for Kindergarten and Pr

100 Must Know Sight Words: First Learning for Kids and Toddlers, Great for Kindergarten and Pr

Matematika Diketahui SPLDV berikut.
3a+b=7
4a+2b=12
Tentukan nilai 2a-b !

Diketahui SPLDV berikut.
3a+b=7
4a+2b=12
Tentukan nilai 2a-b !

Jawaban:

3a+b=7 |×2| 6a+2b=14

4a+2b=12 |×1|. 4a+2b=12

________-

2a=2

a=1

3(1)+b=7

b=7-3

b=4

maka 2(1)-4=-2

Jawaban:

Mohon di koreksi jika salah, semoga membantu!

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