1) 3 - (4x + 1) = -2 2) 6 + (3 - x)= 10 3) -2y - (5 + y)= 13 4) 4x - 2* (x + 7)= 2x - 2* (x - 1) 5) 10 - 5* (x - 1)= -4* (x - 2)
1) 3-(4х+1)=2 3-4х+1=2 -4х= 2-4 -х=-2/4=-1/2=-0.5 |*(-1) х=0.5 2)6+(3-х)=10 6+3-х=10 -х=10-9 х=-1 -2у-(5+у)=13 -2у-5+у=13 -у-5=13 -у=13+5=18 у=-18