Question

1.Rezolvați ecuațiile: a) 3×(4x-1)=21;
b) 3×(5x+2)=36;
c) 6×(2x-1)=-18;
d) -3×(4x-6)=30;
e) -5×(2x-3)=8x-3;
f) 3×(2x-5)=21;
g) 5×(3x-4)=6x+7;
h) -4×(x-3)=16;
l) 14×(x+1)=13x.
2. Rezolvați ecuațiile:
a) 8x-4-3=2×(x-1)+x;
b) 3x-6+4=2×(3x+1)-x;
c) 3×(5x-1)-7=24x-1;
d) 6×(x+3)-1=10x+5-8x
Vă rog frumos să mă ajutați! Dau COROANĂ! URGEEEENT!!!!

Answer 1

1)
A) 12X-3=21
12X=24
X=24/12=2

B) 15X+6=36
15X=30
X=30/15=2

C) 12X-6=-18
12X=-12
X=-12/12=-1

D)-12X+18=-18
-12X=-36
X=36/12=3

E)-10X+15=8X-3
-10X-8X=-3-15
-18X=-18
X=1

F)6X-15=21
6X=36
X=36/6=6

G)15X-20=6X+7
15X-6X=7+20
11X=27
X=27/11

H)-4X+12=16
-4X=4
X=-4

I)14X+14=13X
14X-13X=14
X=14

2)
A)8X-4-3=2X-2+X
8X-2X-X=-2+4+3
5X=5
X=1

B) 3X-6+4=6X+2-X
3X-6X+X=2+6-4
-2X=4
X=-2

C) 15X-3-7=24X-1
15X-24X=-1+3+7
-9X=9
X=-1

D)6X+18-1=10X+5-8X
6X-10X+8X=5-18+1
4X=-12
X=-3