Question

1. Află numărul necunoscut:
• (a : 3 + 196) - 55 = 146
• 703 - (23 + b x 8) = 624
• 1000-(cx7 - 23) = 960​

Answer 1

Răspuns:

1. (a:3+196)-55=146 --->a:3+196=146+55

a:3+196=201

a:3=201-196=5

a=5×3=15---> a=15

2. 703-(23+b×8)=624---->23+b×8=703-624--->79

b×8=23+79=102

b=102×8=816

3.1000-(c×7-23)=960---->cx7-23=1000-960--->40

c×7=40-23--->17

c=17×7=119