Matematika Sekolah Menengah Atas Quiz
[tex] \: \: [/tex]
¾ + 2a = ½

nilai a = ...


Quiz
[tex] \: \: [/tex]
¾ + 2a = ½

nilai a = ...


¾ + 2a = ½

2a = ½ - ¾

2a = 1×2/2×2 - ¾

2a = 2/4 - 3/4

2a = 2-3/4

2a = -1/4

a = 2 ÷ -1/4

a = 2 × 4/-1

a = 2 × -4

a = -8

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~ Persamaan

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Pembahasan :

[tex] \frac{3}{4} + 2a = \frac{1}{2} [/tex]

[tex] 2a = \frac{1}{2} - \frac{3}{4}[/tex]

[tex]2a = \frac{1 \times 2}{2 \times 2} - \frac{3}{4}[/tex]

[tex]2a = \frac{2}{4} - \frac{3}{4}[/tex]

[tex]2a = \frac{2 - 3}{4} [/tex]

[tex]2a = - \frac{1}{4} [/tex]

[tex]a = - \frac{1}{4} \div 2[/tex]

[tex]a = - \frac{1}{8} [/tex]

Kesimpulan :

Jadi, nilai a yg memenuhi bntk persamaan tsb adalah -

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