Whakaoti mō x
x=43
Graph
Tohaina
Kua tāruatia ki te papatopenga
7x-15-3x=3\left(x+7\right)+7
Whakamahia te āhuatanga tohatoha hei whakarea te -3 ki te 5+x.
4x-15=3\left(x+7\right)+7
Pahekotia te 7x me -3x, ka 4x.
4x-15=3x+21+7
Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te x+7.
4x-15=3x+28
Tāpirihia te 21 ki te 7, ka 28.
4x-15-3x=28
Tangohia te 3x mai i ngā taha e rua.
x-15=28
Pahekotia te 4x me -3x, ka x.
x=28+15
Me tāpiri te 15 ki ngā taha e rua.
x=43
Tāpirihia te 28 ki te 15, ka 43.
Ngā Tauira
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