Whakaoti mō x
x = \frac{179}{7} = 25\frac{4}{7} \approx 25.571428571
Graph
Tohaina
Kua tāruatia ki te papatopenga
5x-1+2+2x=180
Pahekotia te 3x me 2x, ka 5x.
5x+1+2x=180
Tāpirihia te -1 ki te 2, ka 1.
7x+1=180
Pahekotia te 5x me 2x, ka 7x.
7x=180-1
Tangohia te 1 mai i ngā taha e rua.
7x=179
Tangohia te 1 i te 180, ka 179.
x=\frac{179}{7}
Whakawehea ngā taha e rua ki te 7.
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