a) 3x+12=2x+10 = 3x-2x= 10-12 x=-2
b) 3(x-1)-2(x-2)=4(x-3) = 3x+1-2x+2=4x+3 = 3x-2x-4x=3-1-2 = -3x≠0
c) 1-x-13=x2 = 1-13=2x+x= -12=3x /:3 = x= -4
d) x+54-2x+18=12(2-x)+0,75 = x+54-2x+18=12* 2-x+0,75 =
= x-2x-x=24+0,75-54-18 = -2x= -47,25/:-2 = x= 23,625
mam nadzieję że pomogłam :)
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a) 3x+12=2x+10 = 3x-2x= 10-12 x=-2
b) 3(x-1)-2(x-2)=4(x-3) = 3x+1-2x+2=4x+3 = 3x-2x-4x=3-1-2 = -3x≠0
c) 1-x-13=x2 = 1-13=2x+x= -12=3x /:3 = x= -4
d) x+54-2x+18=12(2-x)+0,75 = x+54-2x+18=12* 2-x+0,75 =
= x-2x-x=24+0,75-54-18 = -2x= -47,25/:-2 = x= 23,625
mam nadzieję że pomogłam :)