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2x-14-3x-6=4x+12+2x-18
-7x=17//:(-7)
x=-2
b)-3×(x+6)-6×(2x+8)=-2×(4-x)+9×(x+8)
-3x-18-12x-48=-8+2x+9x+72
-26x=130//:(-26)
x=5
c)-8×(x+2)+3×(x+5)=-2×(2x+3)+4×(2x-1)
-8x-16+3x+15=-4x-6+8x-4
-9x=-9//:(-9)
x=1
d)6×(4-x)+5×(2x-5)=4×(x+1)-3×(4-x)
24-6x+10x-25=4x+4-12+3x
-3x=-7//:(-3)
x=2 i 1/3
2. Rozwiąż równania
a)3×(3-x)+2x=8-2×(x-1)
9-3x+2x=9-2x+2
x=2
b)4-5×(3-x)=-x-(3-2x)
4-15+5x=-x-3+2x
4x=14//:4
x=3,5
c)4x+5-(3x+6)=2×(2x+x)-4
4x+5-3x-6=4x+2x-4
-5x=-3//:(-5)
x=0,6
d)x-(7+2x)=2×(x-1)+1
x-7-2x=2x-2+1
-3x=6//:(-3)
x=-2