2 x - 7 + 6 \cdot ( x - 1 ) = ( x
Whakaoti mō x
x = \frac{13}{7} = 1\frac{6}{7} \approx 1.857142857
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x-7+6x-6=x
Whakamahia te āhuatanga tohatoha hei whakarea te 6 ki te x-1.
8x-7-6=x
Pahekotia te 2x me 6x, ka 8x.
8x-13=x
Tangohia te 6 i te -7, ka -13.
8x-13-x=0
Tangohia te x mai i ngā taha e rua.
7x-13=0
Pahekotia te 8x me -x, ka 7x.
7x=13
Me tāpiri te 13 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
x=\frac{13}{7}
Whakawehea ngā taha e rua ki te 7.
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