oblicz a)2x-7=5x+3 b)3(x-2)+x=3x+1 c)x+4(x-1)=2(x+2)
oblicz
a)2x-7=5x+3
b)3(x-2)+x=3x+1
c)x+4(x-1)=2(x+2)
a) x=4/3 b) x=7 c) x=8/3
a) 2x - 7 = 5x + 3 2x - 5x = 7 + 3 - 3x = 10 x ≈ 3 b) 3(x-2)+x = 3x - 1 3x - 5 + x = 3x - 1 4x - 3x = 5 - 1 x = 4 c) x+4(x-1) = 2(x+2) x + 4x - 4 = 2x + 4 5x - 2x = 4 -4 3x = 0
a)2x-7=5x+3 2x-5x=3+7 -3x=10 x=10:(-3) x=-3i1/3 b)3(x-2)+X=3x+1 3x-6+x=3x+1 3x+x-3x=1+6 x=7 c)x+4(x-1)=2(x+2) x+4x-4=2x+4 5x-4=2x+4 5x-2x=4+4 3x=4 x=4:3 x=1 i 1/3