Question

rezolvatii ecuatiele:
a) 3(1-2x)+8=32
b) 60:(3y+2)=12
c) 1-3(8x-4)=1
d) 1605+4(3-x)=2011
va rogg

Answer 1

3-6x+8=32. 11-6x=32. -6x=21. x=21/6. simplificare prin 3 x=7/2

Answer 2

a) 3 - 6x + 8 = 32
- 6x = 32 - 11
- 6x = 21
x = - 21/6
b) 60 = 12(3y + 2)
60 = 36y + 24
36y = 60 - 24
y = 36 : 36
y = 1
c) 1 - 24x + 12 = 1
- 24x = - 1 - 12 + 1
x = 12/24 = 1/2
d) 1605 + 12 - 4x = 2011
- 4x = 2011 - 1605 - 12
- 4x = 394
x = - 394/4 = - 197/2