30 + (x-2) = 70

(35-y) * 6=180

60: (a+2) = 10

(25-B) : 5=3

90 - (74+z) = 10

3x+5 * (x+2) = 34

Question

Математика

Йисахар

9 мая, 14:49

30 + (x-2) = 70

(35-y) * 6=180

60: (a+2) = 10

(25-B) : 5=3

90 - (74+z) = 10

3x+5 * (x+2) = 34

+1

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Долстен · Answer 1

1) 30 + (x-2) = 70

30+x-2=70

28+x=70

x=70-28

x=42

2) (35-y) * 6=180

210-6y=180

-6y=180-210

-6y=-30

y=5

3) 60: (a+2) = 10

a=4

4) B=10

5) z=6

6) x=3

30 + (x-2) = 70(35-y) * 6=18060: (a+2) = 10(25-B) : 5=390 - (74+z) = 103x+5 * (x+2) = 34

30 + (x-2) = 70

(35-y) * 6=180

60: (a+2) = 10

(25-B) : 5=3

90 - (74+z) = 10

3x+5 * (x+2) = 34