Question

VA ROG SA MA AJUTATI LA EXERCITIUL 5 PUNCTELE DE LA c LA i (DAU COROANA SI 10 PUNCTE)

Answer 1

sper ca te-am ajutat

Answer 2

c) 8x + 24= 64 <=> 8x= 40 <=> x=5
d)5(2x-11)=35<=>2x-11=7<=>2x=18<=>x=9
e)6 ( 3x + 4 ) + 15 = 201<=>18x + 24 + 15 = 201<=>18x = 201 - 24 - 15<=>18x = 162<=>x = 162 : 18<=>x = 9
f)17 ( 2x + 3 ) - 25 = 366<=>34x + 51 - 25 = 366<=>34x = 366 - 51 + 25<=>34x = 340<=> x = 340 : 34<=>x = 10
g)4 ( 5x - 12 ) - 34 = 118<=>20x - 48 - 34 = 118<=>20x = 118 + 48 + 34<=> 20x = 200<=>x=200:20<=>x=10
h)125 - 3 ( 2x - 1 ) = 98<=>125 - 6x + 3 = 98<=> -6x = 98 - 125 - 3<=> -6x = -30 | (-1)<=> 6x = 30<=>x = 30 : 6<=>x = 5
i)238 - 5 ( x - 1 ) = 193<=>238 - 5x + 5 = 193<=>-5x = 193 - 238 - 5<=>-5x = -50 | ( -1 )<=>5x = 50<=>x = 50 : 5<=> x = 10
Succes sper ca te-am ajutat!