Question

Va rog din suflet.
​

Answer 1

Sper ca te am ajutat! Nu stiu de ce se vede poza blurata.

Answer 2

$\displaystyle a)~x+3=1 \Rightarrow x=1-3 \Rightarrow x=-2\\\\ x+8=10 \Rightarrow x=10-8 \Rightarrow x=2\\\\ b)~x-6=-9 \Rightarrow x=-9+6 \Rightarrow x=-3\\\\ x-3=-5 \Rightarrow x=-5+3 \Rightarrow x=-2\\\\c)~x-4=8\Rightarrow x=8+4 \Rightarrow x=12\\\\ x-12=9 \Rightarrow x=9+12 \Rightarrow x=21\\\\ d)~x+7=10\Rightarrow x=10-7\Rightarrow x=3\\\\x+15=4 \Rightarrow x=4-15 \Rightarrow x=-11$

$\displaystyle e)~4x=-20 \Rightarrow x=-\frac{20}{4} \Rightarrow x=-5\\\\ 7x=-42 \Rightarrow x=-\frac{42}{7}\Rightarrow x= -6\\\\ f)~-5x=5\Rightarrow x=-\frac{5}{5}\Rightarrow x=-1\\\\ -10x=90 \Rightarrow x=-\frac{90}{10} \Rightarrow x=-9\\\\ g)~-9x=-54 \Rightarrow x=\frac{54}{9} \Rightarrow x=6\\\\ -3x=-33 \Rightarrow x=\frac{33}{3} \Rightarrow x=11$

$\displaystyle h)~x:(-3)=1 \Rightarrow x=1 \cdot (-3) \Rightarrow x=-3\\\\ x:(-7)=3 \Rightarrow x=3 \cdot (-7) \Rightarrow x=-21\\\\ i)~x:9=0 \Rightarrow x=0 \cdot 9 \Rightarrow x=0\\\\ 2x:9=-8 \Rightarrow 2x=-8 \cdot 9 \Rightarrow 2x=-72\Rightarrow x=-\frac{72}{2}\Rightarrow x=- 36\\\\ j)~3x+12=0 \Rightarrow 3x=0-12\Rightarrow 3x=-12 \Rightarrow x=-\frac{12}{3} \Rightarrow x=-4\\\\7x+14=0 \Rightarrow 7x=0-14 \Rightarrow 7x=-14 \Rightarrow x=-\frac{14}{7}\Rightarrow x=-2$

$\displaystyle k)~-6x+6=0 \Rightarrow -6x=0-6 \Rightarrow -6x=-6 \Rightarrow x=\frac{6}{6} \Rightarrow x=1\\\\ -2x+18=0 \Rightarrow -2x=0-18 \Rightarrow -2x=-18 \Rightarrow x=\frac{18}{2} \Rightarrow x=9\\\\ l)~-10x-20=0\Rightarrow -10x=0+20 \Rightarrow -10x=20 \Rightarrow x=-\frac{20}{10} \Rightarrow x=-2\\\\-5x-40=0 \Rightarrow -5x=0+40\Rightarrow -5x=40 \Rightarrow x=-\frac{40}{5}\Rightarrow x= -8$

$\displaystyle m)~4x-8=0\Rightarrow 4x=0+8\Rightarrow 4x=8 \Rightarrow x=\frac{8}{4} \Rightarrow x=2\\\\ 3x-27=0 \Rightarrow 3x=0+27\Rightarrow 3x=27\Rightarrow x=\frac{27}{3} \Rightarrow x=9\\\\ n)~6x+2=-16 \Rightarrow 6x=-16-2 \Rightarrow 6x=-18 \Rightarrow x=-\frac{18}{6}\Rightarrow x=-3\\\\ -9x+4=-32 \Rightarrow -9x=-32-4 \Rightarrow -9x=-36 \Rightarrow x=\frac{36}{9} \Rightarrow x=4$

$\displaystyle o)~5x+6=2x\Rightarrow 5x-2x=-6 \Rightarrow 3x=-6\Rightarrow x=-\frac{6}{3} \Rightarrow x=-2\\\\2x-9=-7x \Rightarrow 2x+7x=9 \Rightarrow 9x=9 \Rightarrow x=\frac{9}{9} \Rightarrow x=1\\\\ p)~3(x+1)=-9 \Rightarrow 3x+3=-9 \Rightarrow 3x=-9-3 \Rightarrow 3x=-12\Rightarrow \\\\ \Rightarrow x=-\frac{12}{3}\Rightarrow x=-4\\\\-5(x+5)=10 \Rightarrow -5x-25=10 \Rightarrow -5x=10+25 \Rightarrow -5x=35 \Rightarrow \\\\ \Rightarrow x=-\frac{35}{5} \Rightarrow x=- 7$