35+23+x=100 70-a=8+9+2 a+(45-30)=75

Question

35+23+x=100 70-a=8+9+2 a+(45-30)=75

Answer 1

35+23+Х=100
58+х=100
Х=100-58
Х=42
70-а=8+9+2
70-а=19
а=70-19
а=51
а+(45-30)=75
а+15=75
а=75-15
а=60

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