Whakaoti mō x
x=7
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x+5+2x-3=4x-3-2+x
Pahekotia te 3x me -x, ka 2x.
4x+5-3=4x-3-2+x
Pahekotia te 2x me 2x, ka 4x.
4x+2=4x-3-2+x
Tangohia te 3 i te 5, ka 2.
4x+2=4x-5+x
Tangohia te 2 i te -3, ka -5.
4x+2=5x-5
Pahekotia te 4x me x, ka 5x.
4x+2-5x=-5
Tangohia te 5x mai i ngā taha e rua.
-x+2=-5
Pahekotia te 4x me -5x, ka -x.
-x=-5-2
Tangohia te 2 mai i ngā taha e rua.
-x=-7
Tangohia te 2 i te -5, ka -7.
x=7
Me whakarea ngā taha e rua ki te -1.
Ngā Tauira
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