a) 2(x-3) = 8- 4 se continua cu 2(x-3) = 4 <=> x - 3 = 4 : 2 <=> x - 3 = 2 <=> x = 2 + 3 <=> x = 5
b) se continua cu 0,5(1-x) = 6-2 <=> 0,5(1-x) = 4 <=> 5/10 × (1-x) = 4 <=> 1/2 (1-x) = 4 <=> (1-x)/2 = 4 <=> 1-x = 4×2 <=> 1-x = 8 <=> 1 - 8 = x <=> -7 = x <=> x= -7
