Whakaoti mō x
x=15
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x+15=3x
Tāpirihia te 5 ki te 10, ka 15.
2x+15-3x=0
Tangohia te 3x mai i ngā taha e rua.
-x+15=0
Pahekotia te 2x me -3x, ka -x.
-x=-15
Tangohia te 15 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
x=15
Me whakarea ngā taha e rua ki te -1.
Ngā Tauira
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\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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