Question

Rezovati ecuatia:
a)7-4·(x+1)=10
b)x-$\frac{2x+1}{2} = \frac{5}{6}$

Va rog mult !

Answer 1

$\displaystyle a).7-4(x+1)=10 \\ 7-4x-4=10 \\ -4x=10-7+4 \\ -4x=7 \\ x=- \frac{7}{4}$
$\displaystyle b).x- \frac{(2x+1)}{2} = \frac{5}{6} \\ 6x-3(2x+1)=5 \\ 6x-6x-3=5~ Fals$

Answer 2

$a) 7-4*(x+1)=10 \\ 7-4x-4=10 \\ -4x=3+4 \\ -4x=7 \\ x=- \frac{7}{4} \\ b) \frac{6x}{6}- \frac{6x+3}{6}= \frac{5}{6}= \frac{6x-6x+3}{6}= \frac{5}{6} \\ \frac{3}{6}= \frac{5}{6} \\ \frac{1}{2}= \frac{5}{6}$