Oblicz.
a) 4(x-2)= 16
b) -(x-3)=6x-(4-x)
c) 4x-x + 2 = -6(x-2)
d) 1/5(x-2a)= 4-(0,2-3x)
a) 4x-8=16
4x=8 /:4
x=2
b) -x+3=6x-4+x
7=8x /8
x=7/8
x=0.875
c) 3x+2=-6x+12
9x=14 /:9
x=14/9
x1,55
d) 0,2x-0,4a=3,8+3x
2,8x-0,4a=3,8.
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a) 4x-8=16
4x=8 /:4
x=2
b) -x+3=6x-4+x
7=8x /8
x=7/8
x=0.875
c) 3x+2=-6x+12
9x=14 /:9
x=14/9
x1,55
d) 0,2x-0,4a=3,8+3x
2,8x-0,4a=3,8.