Pomocy pardzo pilne rozwiąrzcie te zadanie 16
a)
2(5x-1)=8 I :2
5x-1=4 I +1
5x=5 I :5
x=1
½(4y+6)=3 I :½
4y+6=6 I -6
4y=0 I:4
y=0
-3(x-2)=-9 I:(-3)
x-2=3 I+2
x=5
b)
2(5x-1)=8
10x-2=8 I +2
10x=10 I :10
½(4y+6)=3
2y+3=3 I -3
2y=0 I :2
-3(x-2)=-9
-3x+6=-9 I -6
-3x=-15 I :(-3)
sposób Asi
2(5x-1)=8 /:2
5x-1=4 /+1
5x=5 /:5
½(4y+6)=3 /:½
4y+6=6 /-6
4y=0 /:4
c)
-3(x-2)=-9 /:-3
x-2=3 /+2
sposób Leszka
10x-2=8 /+2
10x=10 /:10
2y+3=3 /-3
2y=0 /:2
-3x+6=-9 /-6
-3x=-15 /:-3
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a)
2(5x-1)=8 I :2
5x-1=4 I +1
5x=5 I :5
x=1
½(4y+6)=3 I :½
4y+6=6 I -6
4y=0 I:4
y=0
-3(x-2)=-9 I:(-3)
x-2=3 I+2
x=5
b)
2(5x-1)=8
10x-2=8 I +2
10x=10 I :10
x=1
½(4y+6)=3
2y+3=3 I -3
2y=0 I :2
y=0
-3(x-2)=-9
-3x+6=-9 I -6
-3x=-15 I :(-3)
x=5
sposób Asi
a)
2(5x-1)=8 /:2
5x-1=4 /+1
5x=5 /:5
x=1
b)
½(4y+6)=3 /:½
4y+6=6 /-6
4y=0 /:4
y=0
c)
-3(x-2)=-9 /:-3
x-2=3 /+2
x=5
sposób Leszka
a)
2(5x-1)=8
10x-2=8 /+2
10x=10 /:10
x=1
b)
½(4y+6)=3
2y+3=3 /-3
2y=0 /:2
y=0
c)
-3(x-2)=-9
-3x+6=-9 /-6
-3x=-15 /:-3
x=5