Решите уравнения4(2-3х)=-7х+10-4(5-4х)=х+1-4(-7+6х)=-9х-5-6(9-5х)=9х+9-3(1+4х)=-4х-5

4(2-3х)= -7х+10      8 - 12X = - 7X + 10    5X = - 2    X = - 2/5 -4(5-4х)=х+1          - 20 + 16X = X + 1      15X = 21    X = 21/15 = 7/5 = 1 2/5 -4(-7+6х)=-9х-5      28 - 24X = - 9X - 5    15X = 33      X =  33/15 = 11/5 = 2 1/5 -6(9-5х)=9х+9        - 56 + 30X = 9X + 9      21X = 65    X = 65/21 = 3 2/21 -3(1+4х)=-4х-5        - 3 - 12X = -4X - 5    2 = 8X  X = 2/8 = 1/4

1. 8-12x=-7x+10 -12x+7x=10-8 -5x=2 x=-2/5 x=-0,4 2. -20+16x=x+1 16x-x=1+20 15x=21 x=1,4 3. 28-24x=-9x-5 24x+9x=-5-28 33x=-33 x=-1 4. -54+30x=9x+9 30x-9x=9+54 21x=63 x=3 5. -3-12x=-4x-5 -12x+4x=5+3 -8x=8 x=-1