Whakaoti mō x
x = -\frac{48}{17} = -2\frac{14}{17} \approx -2.823529412
Graph
Tohaina
Kua tāruatia ki te papatopenga
15-10x-30=33+7x
Whakamahia te āhuatanga tohatoha hei whakarea te -5 ki te 2x+6.
-15-10x=33+7x
Tangohia te 30 i te 15, ka -15.
-15-10x-7x=33
Tangohia te 7x mai i ngā taha e rua.
-15-17x=33
Pahekotia te -10x me -7x, ka -17x.
-17x=33+15
Me tāpiri te 15 ki ngā taha e rua.
-17x=48
Tāpirihia te 33 ki te 15, ka 48.
x=\frac{48}{-17}
Whakawehea ngā taha e rua ki te -17.
x=-\frac{48}{17}
Ka taea te hautanga \frac{48}{-17} te tuhi anō ko -\frac{48}{17} mā te tango i te tohu tōraro.
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