Question

Rezolvati 2x+7=43+x
84:(x-3)=12
3×(4+5x)=72

Answer 1

2x+7=43+x
2x-x=43-7
x=36

84:(x-3)=12
x-3=84:12
x-3=7
x=10

3(4+5x)=72
12+15x=72
15x=72-12
15x=60
x=4

Answer 2

2x+7=43+x 3x=36 x=36/3 x=12. 84(x-3)=12 7(x-3)=12 x-3=7 x=4. 3(4+5x)=72 4+5x=72/3 4+5x=24 5x=24-4 5x=20 x=20/5 x=4. #)