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2(3x +4) -5(1+2x) =7(2x+3) +18

Răspuns :

Renatemambouko
2(3x +4) -5(1+2x) =7(2x+3) +18

6x +8 -5-10x =14x+21 +18

 +3-4x =14x+39
18x=-36
x=-2
PsycheHaely
2(3x+4) -5(1+2x) = 7(2x+3)
6x+8-5-10x = 14x+21
-4x+3 = 14x+21
-4x-14x = 21-3
-18x = 18
x = 18:(-18)
x = -1

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