haloo ! bolee bantu 2 nmr ini dgn cara kerja nyaa? makasih lhoo!! aku kasih 5 bintanf.
Soal 1:
[tex] \tt12 - 4x = - 54 + 2x[/tex]
[tex] \tt = x + 3, - 2x - x = - 33[/tex]
[tex] = \tt x + 3, - 3x = - 33[/tex]
[tex] = \tt - \frac{1}{3}( - 3x) + 3, - 3x = - 33[/tex]
[tex] = \tt \frac{1}{3} \times 33 + 3[/tex]
[tex] \tt= 11 + 3, - 3x = - 33[/tex]
[tex] = \tt14[/tex]
Soal 2:
[tex] \tt x - \frac{7x - 21}{5} = \frac{2x + 6}{5} + 1[/tex]
[tex] = \tt 5x - 7x + 21 = 2x + 1[/tex]
[tex] = \tt - 2x + 21 = 2x + 11[/tex]
[tex] = \tt - 2x - 2x = 11 - 21[/tex]
[tex] = \tt - 4x = - 10[/tex]
[tex]\tt x = 10 \div 4[/tex]
[tex] \tt x = \frac{10}{4} [/tex]
[tex] \tt x = \frac{5}{2} [/tex]
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