Question

Determinați x:
a) 18 x + 24 = 150
b)(x:5+210):100=6​

Answer 1

Răspuns:

a) x=7 b) x=1950

Explicație pas cu pas:

a) 18x+24=150

=> 18x=150-24

=> 18x=126

=> 126:18=x => x=7

b) (x:5+210):100=6

=> x:5+210=100×6

=> x:5+210=600

=> x:5=600-210

=> x:5=390 => x=390×5 => x=1950

Answer 2

Răspuns:

$\it\:a)\: 18x+24=150\Rightarrow18x=150-24\Rightarrow18x=126\Rightarrowx=126:18\Rightarrow\boxed{x=7}\\\\\\b)\:(x:5+210):100=6\\\\(x:5+210) = 6\cdot100\\\\x:5+210=600\\\\x:5=600-210\\\\x:5=390\\\\x = 390\cdot5\\\\\boxed{\it x=1950}$