Prosze kto mógłby rozwiązać te równania : a)x+7=-3 b)0,5-3=-5 c)6x-1=-7x-14 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)
za rozwiązania dam naj bede bardzo wdzięczna :)
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a)
x+7=-3
x = -3 - 7
x = -10
b)
0,5 - 3 = -5
błedne równanie
c)
6x-1=-7x-14
6x + 7x = -14 + 1
13x = -13 /:13
x = -1
d)
3x+(x+75)=183-5x
3x + x + 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
6x - 14 = 4x - 8
6x - 4x = -8 + 14
2x = 6 /:2
x = 3
a)
x+7=-3
x = -3-7
x = -10
b)
0,5-3=-5 ???????
c)
6x-1=-7x-14
6x+7x = -14+1
13x = -13 /:13
x = -1
d)
3x+(x+75)=183-5x
3x+x+75 = 183-5x
3x+x+5x = 183-75
9x = 108 /:9
x = 12
e)
2(x-1)-3(x+1)=-8
2x-2-3x-3 = -8
2x-3x = -8+2+3
-x = -3 /:(-1)
x = 3
f)
4(x+6)-8=2(x+6)
4x+24-8 = 2x+12
4x-2x = 12-24+8
2x = -4 /:2
x = -2
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
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