Question

ma puteti ajuta va rog?
5x+4=x-6
2x-3=4x-1
8x+1=5x-5
5x-3=3x+11
4x+13=3x+13
7(x-3)=-42
5(x+1=-45
9(x-2)=-63
4=5(x+1)-6
-3(-5x+2)+16=5
5(3x-2)=10x-35
5(2x+2)=15x-45
4(x+1)=-7x-7
5(x-1)=3x+7
6(x-9)=-9x-144
ma ajutati la toate exercițiile va rog?

Answer 1

5x+4=x-6⇒5x-x=-6-4⇒4x=-10⇒x=-5/2
2x-3=4x-1⇒-3+1=4x-2x⇒-2=2x⇒x=-1
8x+1=5x-5⇒8x-5x=-5-1⇒3x=-6⇒x=-2
5x-3=3x+11⇒5x-3x=11+4⇒2x=15⇒x=15/2
4x+13=3x+13⇒4x-3x=13-13⇒x=0
7(x-3)=-42⇒7x-21=-42⇒7x=-42+21⇒7x=-21⇒x=-3
5(x+1)=-45⇒5x+5=-45⇒5x=-45-5⇒5x=-50⇒x=-10
9(x-2)=-63⇒9x-18=-63⇒9x=-63+18⇒9x=-45⇒x=-5

4=5(x+1)-6⇒4=5x+5-6⇒4=5x-1⇒x=1
-3(-5x+2)+16=5⇒15x-6+16=5⇒15x+10=5⇒15x=5-10⇒15x=-5⇒x=-1/3
5(3x-2)=10x-35⇒15x-10=10x-35⇒5x=-35+10⇒5x=-25⇒x=-5
5(2x+2)=15x-45⇒10x+10=15x-45
4(x+1)=-7x-7⇒4x+4=-7x-7⇒11x=-11⇒x=-1
5(x-1)=3x+7⇒5x-5=3x+7⇒2x=12⇒x=6
6(x-9)=-9x-144⇒6x-54=-9x-11⇒6x+9x=-11+144⇒15x=133⇒x=133/15