Whakaoti mō y
y=-15
Graph
Tohaina
Kua tāruatia ki te papatopenga
\frac{9}{2}+\frac{5}{2}y-2y=-3
Tangohia te 2y mai i ngā taha e rua.
\frac{9}{2}+\frac{1}{2}y=-3
Pahekotia te \frac{5}{2}y me -2y, ka \frac{1}{2}y.
\frac{1}{2}y=-3-\frac{9}{2}
Tangohia te \frac{9}{2} mai i ngā taha e rua.
\frac{1}{2}y=-\frac{6}{2}-\frac{9}{2}
Me tahuri te -3 ki te hautau -\frac{6}{2}.
\frac{1}{2}y=\frac{-6-9}{2}
Tā te mea he rite te tauraro o -\frac{6}{2} me \frac{9}{2}, me tango rāua mā te tango i ō raua taurunga.
\frac{1}{2}y=-\frac{15}{2}
Tangohia te 9 i te -6, ka -15.
y=-\frac{15}{2}\times 2
Me whakarea ngā taha e rua ki te 2, te tau utu o \frac{1}{2}.
y=-15
Me whakakore te 2 me te 2.
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