Whakaoti mō x
x = -\frac{78}{17} = -4\frac{10}{17} \approx -4.588235294
Graph
Tohaina
Kua tāruatia ki te papatopenga
-15-10x-30=33+7x
Whakamahia te āhuatanga tohatoha hei whakarea te -5 ki te 2x+6.
-45-10x=33+7x
Tangohia te 30 i te -15, ka -45.
-45-10x-7x=33
Tangohia te 7x mai i ngā taha e rua.
-45-17x=33
Pahekotia te -10x me -7x, ka -17x.
-17x=33+45
Me tāpiri te 45 ki ngā taha e rua.
-17x=78
Tāpirihia te 33 ki te 45, ka 78.
x=\frac{78}{-17}
Whakawehea ngā taha e rua ki te -17.
x=-\frac{78}{17}
Ka taea te hautanga \frac{78}{-17} te tuhi anō ko -\frac{78}{17} mā te tango i te tohu tōraro.
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