Ответ:
1) 180-70=100
2)2x=100
x=50
50 50 70 70
2)
360-100=260
260/2=130
130; 130; 50; 50
3)x+(x+20)=180
2x=180-20
x=80
80+20=100
80 80 100 100
4) 3x+7x=180
x=18
1) 3*18=54
2) 180-54= 126
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Verified answer
Ответ:
1) 180-70=100
2)2x=100
x=50
50 50 70 70
2)
360-100=260
260/2=130
130; 130; 50; 50
3)x+(x+20)=180
2x=180-20
x=80
80+20=100
80 80 100 100
4) 3x+7x=180
x=18
1) 3*18=54
2) 180-54= 126