Question

2.
x-15+3(x+1)=5(x-2) +11

5x+9 +3(2x-1) = 2X+24

7 (x+3) - 3x = 5+6(x+6)-4x
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Answer 1

Răspuns:

x-15+3x+3=5x-10+11

4x-12=5x+1

-12-1=5x-4x

x=-13

5x+9+6x-3=2x+24

11x+6=2x+24

11x-2x=24-6

9x=18

x=2

7x+21-3x=5+6x+36-4x

4x+21=2x+41

4x-2x=41-21

2x=20

x=10

Explicație pas cu pas: