Whakaoti mō x
x=-8
Graph
Tohaina
Kua tāruatia ki te papatopenga
7+8x+48=31+5x
Whakamahia te āhuatanga tohatoha hei whakarea te 8 ki te x+6.
55+8x=31+5x
Tāpirihia te 7 ki te 48, ka 55.
55+8x-5x=31
Tangohia te 5x mai i ngā taha e rua.
55+3x=31
Pahekotia te 8x me -5x, ka 3x.
3x=31-55
Tangohia te 55 mai i ngā taha e rua.
3x=-24
Tangohia te 55 i te 31, ka -24.
x=\frac{-24}{3}
Whakawehea ngā taha e rua ki te 3.
x=-8
Whakawehea te -24 ki te 3, kia riro ko -8.
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