Odpowiedź:
L
-(3x+5)=5x+3
-3x-5=5x+3|+5
-3x=5x+8|-5x
-8x=8|×(-1)
8x=-8|÷8
x=-1
B
2(x-1)-1=(x-6)
2x-2-1=x-6
2x-3=x-6|-x
x-3=-6|+3
x=-3
G
4x-3(3x-5)=6x+4
4x-9x+15=6x+4
-5x+15=6x+4|+5x
+15=11x+4|-4
11=11x|÷11
1=x
A
20+x=13|-20
x=-7
x-5/2+x=2x+10/3|×6
3x-15=4x+20|+15
3x=4x+35
3x-4x=35
-x=35|×(-1)
x=-35
E
2(x+2)-(x+1)=5
2x+4-x-1=5
x+3=5|-3
x=2
R
(2x-5)(x+3)=2x²-2x
2x²+6x-5x-15=2x²-2x
2x²+x-15=2x²-2x|-2x²
x-15=-2x
-15=-2x-x
-15=-3x|÷(-3)
5=x
HASLO:ALGEBRA
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Odpowiedź:
L
-(3x+5)=5x+3
-3x-5=5x+3|+5
-3x=5x+8|-5x
-8x=8|×(-1)
8x=-8|÷8
x=-1
B
2(x-1)-1=(x-6)
2x-2-1=x-6
2x-3=x-6|-x
x-3=-6|+3
x=-3
G
4x-3(3x-5)=6x+4
4x-9x+15=6x+4
-5x+15=6x+4|+5x
+15=11x+4|-4
11=11x|÷11
1=x
A
20+x=13|-20
x=-7
A
x-5/2+x=2x+10/3|×6
3x-15=4x+20|+15
3x=4x+35
3x-4x=35
-x=35|×(-1)
x=-35
E
2(x+2)-(x+1)=5
2x+4-x-1=5
x+3=5|-3
x=2
R
(2x-5)(x+3)=2x²-2x
2x²+6x-5x-15=2x²-2x
2x²+x-15=2x²-2x|-2x²
x-15=-2x
-15=-2x-x
-15=-3x|÷(-3)
5=x
HASLO:ALGEBRA