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5 (x+2)+4(x-3)=3 (x+8)-14

Răspuns :


5 (x+2)+4(x-3)=3 (x+8)-14⇒5x+10+4x-12=3x+24-14⇒5x+4x-3x=-10+12+24-14⇒3x=12⇒x=12/3⇒x=4
5 (x+2)+4 (x-3)=3(x+8)-14
=5x+10+4x-12=3x+24-14=
=5x+4x-3×=10+12+24-14=
=6x=32
x=32:6=5,(3)
x=5,(3)