Question

a) m + 7 x 4 =42, b) n - 3 x 8 =24, c) 9 x 8 - p =12, d) q - ( 100 - 93) x 7 =40, e) 8 x 7 + 7 x 2 - r =25, f) (18+16:2+14):t =5​

Answer 1

Explicație pas cu pas:

a) m + 7 x 4 =42

m + 28 = 42

m = 42 -28

m = 14

b) n - 3 x 8 =24

n - 24 = 24

n = 24 + 24

n = 48

c) 9 x 8 - p =12

72 - p = 12

p = 72 - 12

p = 60

d) q - ( 100 - 93) x 7 =40

q - 7×7 = 40

q - 49 = 40

q = 49 + 40

q = 89

e) 8 x 7 + 7 x 2 - r =25

56 + 14 - r = 25

r = 70 - 25

r = 45

f) (18+16:2+14):t =5

(18 + 8 + 14) : t = 5

40 : t = 5

t = 40 : 5

t = 8