Question

Cum se calculeaza multumesc

Answer 1

15 x-6-5x+15+8=2-20x+45
10x + 17 = 47 - 20x
10x+20x = 47 - 17
30x = 30
x=1

6(4+x) - 10(4x+5)+15(x+3) = 0
24 + 6x -40 x-50 +15x+45 = 0
-19x +19 = 0
-19x = -19
x=1

Answer 2

a) 15x - 6 - 5x+15+8= 2- 20x+ 45
     10x+17= 47- 20x | + 20 x
     30x+17= 47 | - 17
     30x=30 |÷ 30
        x=1
b) aducem la acelasi numitor. Numitorul comun este 5×3×2= 30
6(4+x) - 10(4x+5)+ 15(x+3)=0
24+ 6x - 40x- 50 +15x+ 45=0 
19 - 19x=0 | +19x
19x=19 | ÷19
    x=1