Question

[(4 x m - 72): 4 + 20] - 64 = 20​

Answer 1

Răspuns:

[(4×m-72):4+20]-64=20|+64

=(4×m-72):4+20=84|-20

=(4×m-72):4=64|×4

=4×m-72=256|+72

=4×m=328

m=328:4

m=82

Sper ca te-am ajutat! :)

Answer 2

Răspuns:

[(4×m-72):4+20]=20/+64

(4×m-72):4+20=84/-20

(4×m-72):4=64/×4

4×m-72=256/+72

4×m=328/:4

m=82