Whakaoti mō a
a=-23
Tohaina
Kua tāruatia ki te papatopenga
3\left(a+1\right)-2\left(2a+1\right)=24
Me whakarea ngā taha e rua o te whārite ki te 6, arā, te tauraro pātahi he tino iti rawa te kitea o 2,3.
3a+3-2\left(2a+1\right)=24
Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te a+1.
3a+3-4a-2=24
Whakamahia te āhuatanga tohatoha hei whakarea te -2 ki te 2a+1.
-a+3-2=24
Pahekotia te 3a me -4a, ka -a.
-a+1=24
Tangohia te 2 i te 3, ka 1.
-a=24-1
Tangohia te 1 mai i ngā taha e rua.
-a=23
Tangohia te 1 i te 24, ka 23.
a=-23
Me whakarea ngā taha e rua ki te -1.
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