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Ericutul
a fost răspuns

a)-2|x+3|+4|x+3|=15-5|x+3|-1

b)3|x+1|+5=|x+1|+11

c)-4|2x-1|+2=-|2x-1|-7

Răspuns :

Iakabcristina2
a)-2|x+3|+4|x+3|=15-5|x+3|-1
-2x-6+4x+12=15-5x-15-1
2x+6=-5x-1
7x=(-7)
x=(-1)

b)3|x+1|+5=|x+1|+11
3x+3+5=x+12
2x=4
x=2

c)-4|2x-1|+2=-|2x-1|-7
-8x+4+2=-2x+1-7
-6x=(-12)
x=2
Cosmin2412004
a)-2|x+3|+4|x+3|=15-5|x+3|-1
-2x-6+4x+12=15-5x+15-1
2x+6=29-5x
7x=35
x=5

b)3|x+1|+5=|x+1|+11
3x+3+5=x+1+11
3x+8=x+12
x=2

c)-4|2x-1|+2=-|2x-1|-7
-8x+4+2=2x-1-7
-8x+6=2x-8
x=

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