Реши уравнение;х-61=59+18 х-13=28+36. 100-х=24-8. 36+х=64+7

1. х-61=59+18       2. х-13=28+36     3. 100-х=24-8   4. 36+х=64+7х-61=77                 х-13=64                100-х=16            36+х=71х=77+61                х=64+13                х=100-16            х=71-36х=138                    х=77                      х=84                   х=35