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Va rog sa ma ajutati la mate..

Va Rog Sa Ma Ajutati La Mate class=

Răspuns :

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Vezi imaginea 102533
5 (3x-2)+3x-6 (8x-)13=16 (9-2x)-78
15x-10+3x-48x-78=144-32x-78
18x+32x-48x=144-78+78+10
50x-48x=154
2x=154
x=77
2) 2 (3x+4)-5 (2x-3)-2=7 (2x-4)+2 (8-5x)+3x
6x+8-10x-15-2=14x-28+16-10x+3x
6x+7x-10x=36+15
3x=51
x=17