Whakaoti mō b
b=7
Tohaina
Kua tāruatia ki te papatopenga
-7+28b+1=190
Whakamahia te āhuatanga tohatoha hei whakarea te 7 ki te -1+4b.
-6+28b=190
Tāpirihia te -7 ki te 1, ka -6.
28b=190+6
Me tāpiri te 6 ki ngā taha e rua.
28b=196
Tāpirihia te 190 ki te 6, ka 196.
b=\frac{196}{28}
Whakawehea ngā taha e rua ki te 28.
b=7
Whakawehea te 196 ki te 28, kia riro ko 7.
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