Răspuns :
Răspuns:
3x-15+2x-15=180
5x-30=180
5x=180+30
5x=210
x=210/5
x=42
Răspuns:
3x-15+2x-15=180/ +15
3x-15+2x=195/+15
5x=210/÷5
x=42
Răspuns:
3x-15+2x-15=180
5x-30=180
5x=180+30
5x=210
x=210/5
x=42
Răspuns:
3x-15+2x-15=180/ +15
3x-15+2x=195/+15
5x=210/÷5
x=42