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24x-3\times 3x+72=144+4\left(3x+4\right)
Me whakarea ngā taha e rua o te whārite ki te 12, arā, te tauraro pātahi he tino iti rawa te kitea o 4,3.
24x-9x+72=144+4\left(3x+4\right)
Whakareatia te -3 ki te 3, ka -9.
15x+72=144+4\left(3x+4\right)
Pahekotia te 24x me -9x, ka 15x.
15x+72=144+12x+16
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te 3x+4.
15x+72=160+12x
Tāpirihia te 144 ki te 16, ka 160.
15x+72-12x=160
Tangohia te 12x mai i ngā taha e rua.
3x+72=160
Pahekotia te 15x me -12x, ka 3x.
3x=160-72
Tangohia te 72 mai i ngā taha e rua.
3x=88
Tangohia te 72 i te 160, ka 88.
x=\frac{88}{3}
Whakawehea ngā taha e rua ki te 3.