Whakaoti mō x
x=18.8
Graph
Tohaina
Kua tāruatia ki te papatopenga
171.2+2x=190+x
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te 85.6+x.
171.2+2x-x=190
Tangohia te x mai i ngā taha e rua.
171.2+x=190
Pahekotia te 2x me -x, ka x.
x=190-171.2
Tangohia te 171.2 mai i ngā taha e rua.
x=18.8
Tangohia te 171.2 i te 190, ka 18.8.
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