Question

х-30=50,х+49=50,100-х=50,70-х=50,20+х=50,51-х=50,0*4+х=50,2*5+х=50

Answer 1

Х-30=50,   
Х=5030,
Х=80.
Х+49=50,
Х=50-49,
Х=1.
100-Х=50,
Х=100-50,
Х=50.
70-Х=50,
Х=70-50,
Х=20.
20+Х=50,
Х=50-20,
Х=30.
51-Х=50,
Х=51-50,
Х=1.
0×4+Х=50,
0+Х=50,
Х=50-0,
Х=50.
2×5+Х=50,
10+Х=50,
Х=50-10,
Х=40.

Answer 2

спасибки большое