Question

determinati numarul natural c care verifica egalitatile: a) (49:x+51:x):5=4; b) (288:x-8):4-5=1

Answer 1

a) (49:x+51:x):5=4
    (49+51):x=4×5
    100:x=20
     x=100:20
     x=5
b) (2288:x-8):4-5=1
    (288-8x):x:4=6
    (288-8x):x=24
    288-8x=24x
    24x+8x=288
    32x=288
    x=9