Question

Ștind că a+b=,48 calculați:
a+(b+12);
(a+7)+(b+5)​

Answer 1

Răspuns:

a+b=48

a+(b+12)=a+b+12=48+12=60

(a+7)+(b+5)​=a+7+b+5=a+b+12=48+12=60

Answer 2

Răspuns:

Explicație pas cu pas:

$\bf a+b=48$  

$\bf a+(b+12)=??$

$\bf (a+7)+(b+5)=??$

$\purple{a+(b+12)}=a+b+12 = 48+12 = \purple{\underline{~60~}}$

$\red{(a+7)+(b+5)}=a+7+b+5=a+b+12=48+12=\red{\underline{~60~}}$