Whakaoti mō y, x
x=45
y=9
Graph
Tohaina
Kua tāruatia ki te papatopenga
x-7\times 9=-18
Whakaarohia te whārite tuarua. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.
x-63=-18
Whakareatia te -7 ki te 9, ka -63.
x=-18+63
Me tāpiri te 63 ki ngā taha e rua.
x=45
Tāpirihia te -18 ki te 63, ka 45.
y=9 x=45
Kua oti te pūnaha te whakatau.
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