Question

A)2+4x=11-2x
b)1-5x=5x-4
c)7-0,5x=9
d)4(x+1)-x=-5

ROZWIĄŻ I SPRAWDŹ

Answer 1

A)2+4x=11-2x
4x + 2x = 11 - 2
6x = 9
x = 9/6
x = 3/2 = 1 1/2

b)1-5x=5x-4
-5x - 5x = -1 + -4
-10x = -5
x = -5/-10
x = 1/5

c)7-0,5x=9
-0,5x = 7 - 9
-0,5x = -2
x = -2/-0,5
x = 4

d)4(x+1)-x=-5
4x + 4 - 1x = -5
4x - 1x = -5 - 4
3x = - 9
x = -9/3
x = - 3

Answer 2

A) 2+4x=11-2x
6x=9
x= 1.5
spr.
2+4*1.5=11-2*1.5
2+6 =11-3
8 = 8

b) 1-5x= 5x-4
-5x=5x-5
-10x=-5
x=0.5
spr.
1-5*0.5=5*0.5-4
1-2.5=2.5-4
-1.5= - 1.5

c) 7-0.5x=9
-0.5x= 2
x=-4

spr.
7-0.5*-4=9
7+2=9
9=9

d) 4(x+1)-x=-5
4x+4-x=-5
3x+4=-5
3x=-9
x= -3
spr.
4(-3+1)+3=-5
-12+4+3=-5
-5=-5