3.4(x-1)-1.2(2x-2)=7(0.5)+2(2
Whakaoti mō x
x=8.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
3.4x-3.4-1.2\left(2x-2\right)=7\times 0.5+2\times 2
Whakamahia te āhuatanga tohatoha hei whakarea te 3.4 ki te x-1.
3.4x-3.4-2.4x+2.4=7\times 0.5+2\times 2
Whakamahia te āhuatanga tohatoha hei whakarea te -1.2 ki te 2x-2.
x-3.4+2.4=7\times 0.5+2\times 2
Pahekotia te 3.4x me -2.4x, ka x.
x-1=7\times 0.5+2\times 2
Tāpirihia te -3.4 ki te 2.4, ka -1.
x-1=3.5+2\times 2
Whakareatia te 7 ki te 0.5, ka 3.5.
x-1=3.5+4
Whakareatia te 2 ki te 2, ka 4.
x-1=7.5
Tāpirihia te 3.5 ki te 4, ka 7.5.
x=7.5+1
Me tāpiri te 1 ki ngā taha e rua.
x=8.5
Tāpirihia te 7.5 ki te 1, ka 8.5.
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