Question

Va rog frumos ajutatima !!!!!!​

Answer 1

Testu 4

1: a. -6 -8-10

B:4

Answer 2

Testul 3

1.a) -18-(-2+10)=-18-8=-26
b)||-2+7|-|-8+3||-|-6+9|=||5|-|-5||-|3|
=|5-5|-|3|
=0-3=-3=|-3|=3
3.ax-ay-4=96
a-y=25
ax-ay-4=96=>a(x-y)-4=96=>a•25-4=96=>
=>25a=96+4=>25a=100=>a=100/25=>a=4
a-(x-y-5)=4-(25-5)=4-20=-16
4.a)9x-3=27-x=>9x+x=27+3=>10x=30=>
=>x=10/30=>x=3
b) |x-7|=18=>x=18+7=>x=|25|=>x=25
c)|3x-8|=-22=>3x=-22+8=>3x=-14=>x=|-14/3|