Whakaoti mō x
x = \frac{117}{80} = 1\frac{37}{80} = 1.4625
Graph
Tohaina
Kua tāruatia ki te papatopenga
158x+78\left(0-x\right)=117
Whakareatia te 0 ki te 15, ka 0.
158x+78\left(-1\right)x=117
Ko te tau i tāpiria he kore ka hua koia tonu.
158x-78x=117
Whakareatia te 78 ki te -1, ka -78.
80x=117
Pahekotia te 158x me -78x, ka 80x.
x=\frac{117}{80}
Whakawehea ngā taha e rua ki te 80.
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