Whakaoti mō x
x=6
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x-2\left(2+1\right)=x
Me whakarea ngā taha e rua o te whārite ki te 4, arā, te tauraro pātahi he tino iti rawa te kitea o 2,4.
2x-2\times 3=x
Tāpirihia te 2 ki te 1, ka 3.
2x-6=x
Whakareatia te -2 ki te 3, ka -6.
2x-6-x=0
Tangohia te x mai i ngā taha e rua.
x-6=0
Pahekotia te 2x me -x, ka x.
x=6
Me tāpiri te 6 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
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