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Whakaoti mō x, y, z, a, b
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Tohaina

\left(2\times 3+2\right)x-15\times 1=9
Whakaarohia te whārite tuatahi. Whakareatia ngā taha e rua o te whārite ki te 3.
\left(6+2\right)x-15\times 1=9
Whakareatia te 2 ki te 3, ka 6.
8x-15\times 1=9
Tāpirihia te 6 ki te 2, ka 8.
8x-15=9
Whakareatia te 15 ki te 1, ka 15.
8x=9+15
Me tāpiri te 15 ki ngā taha e rua.
8x=24
Tāpirihia te 9 ki te 15, ka 24.
x=\frac{24}{8}
Whakawehea ngā taha e rua ki te 8.
x=3
Whakawehea te 24 ki te 8, kia riro ko 3.
x=3 y=7 z=7 a=7 b=7
Kua oti te pūnaha te whakatau.