Whakaoti mō x
x=-60
Graph
Tohaina
Kua tāruatia ki te papatopenga
2\times 7x-60=5\times 3x
Me whakarea ngā taha e rua o te whārite ki te 20, arā, te tauraro pātahi he tino iti rawa te kitea o 10,4.
14x-60=5\times 3x
Whakareatia te 2 ki te 7, ka 14.
14x-60=15x
Whakareatia te 5 ki te 3, ka 15.
14x-60-15x=0
Tangohia te 15x mai i ngā taha e rua.
-x-60=0
Pahekotia te 14x me -15x, ka -x.
-x=60
Me tāpiri te 60 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
x=-60
Me whakarea ngā taha e rua ki te -1.
Ngā Tauira
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