Rozwiaz i sprawdź równania !! :D
a) mam
b)mam
c)mam
d)3x+(x+75)=183-5x
e)2(x-1)-3(x+1)=-8
f)4(x+6)-8=2(x+6)
g)-3(x-2)-5=3(x+5)+4
h)x-1+2(x-2)+3(x-3)=4?(x-2)
Prosze pamietajcie o sprawdzeniach czy L=P prosze daje naj z góry thx :*** :*** :x :>
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
d)3x+(x+75)=183-5x
3x+x+75=183-5x
4x+75=183-5x
4x+5x=183-75
9x=108 | : 9
x = 12
e)2(x-1)-3(x+1)=-8
2x-2-3x-3=-8
-x-5=-8
-x=-8+5
-x=-3 |: (-1)
x=3
f)4(x+6)-8=2(x+6)
4x + 24 - 8 = 2x+12
4x+16=2x+12
4x-2x=12-16
2x=-4 |: 2
x= -2
g)-3(x-2)-5=3(x+5)+4
-3x+6-5=3x+15+4
-3x+1=3x+19
-3x-3x = 19-1
-6x = 18 | : (-6)
x = -3
h)x-1+2(x-2)+3(x-3)=4(x-2)
x-1+2x-4+3x-9=4x-8
5x-14=4x-8
5x-4x=-8+14
x=6
d) 3x + ( x+75) = 183 - 5x
3x + x + 75 = 183 - 5x
4x + 5x = 183 - 75
9x = 108/9
x = 12
Spr. 3*12 + (12+75) = 183 -5*12
36 +87 = 183 - 60
123 = 123
L = P
e) 2(x-1)- 3(x + 1) = - 8
2x -2 - 3x - 3 = - 8
- x = - 8 + 2 + 3
- x = - 3/*( -1)
x = 3
Spr. 2(3-1) -3(3+1) = - 8
2*2-3*4 = -8
4 - 12 = - 8
- 8 = - 8
L = P
f) 4 (x + 6)- 8 = 2(x + 6)
4x +24 - 8 = 2x + 12
4x - 2x = 12 - 24 + 8
2x = - 4/2
x = - 2
Spr. 4 ( -2 +6 ) - 8 = 2(-2+ 6)
4 * 4 - 8 = 2 * 4
16 - 8 = 8
8 = 8
L = P
g) - 3( x - 2) - 5 = 3( x +5) + 4
- 3x + 6 - 5 = 3x + 15 + 4
-3x -3x = 15 + 4 - 6 + 5
- 6x = 18 /(-6)
x = - 3
Spr. -3 (-3 -2) -5 = 3(-3+5 )+4
-3 * ( - 5 ) - 5 = 3 * 2 + 4
15 - 5 = 6 + 4
10 = 10
L = P
h) x - 1 + 2(x - 2 )+3 (x - 3) = 4(x - 2)
x - 1 + 2x - 4 + 3x- 9 = 4x - 8
x + 2x+ 3x - 4x = -8 +1 + 4 +9
2x = 6/2
x = 3
Spr. 3-1+2(3-2)+ 3(3-3 ) = 4 ( 3-2)
2 +2*1+0 = 4 * 1
2 + 2 = 4
4 = 4
L = P