Whakaoti mō x
x=15
Graph
Tohaina
Kua tāruatia ki te papatopenga
5x-15=14-2\left(7-2x\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 5 ki te x-3.
5x-15=14-14+4x
Whakamahia te āhuatanga tohatoha hei whakarea te -2 ki te 7-2x.
5x-15=4x
Tangohia te 14 i te 14, ka 0.
5x-15-4x=0
Tangohia te 4x mai i ngā taha e rua.
x-15=0
Pahekotia te 5x me -4x, ka x.
x=15
Me tāpiri te 15 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
Ngā Tauira
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