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a) 80 - ( 30 + 10 x ) = 60 / b) ( 304 - 117 + 27 ) + x - 15 = 300 Ps.) Ajutatima dau coroana !!

Răspuns :

80-30-10x=60
80-30-60=10x
-10=10x
x=-1

214+x-15=300
x=300-199
x=101
80 - ( 30 + 10 x ) = 60
80-30-10x=60
50-10x=60
-10x=60-50
-10x=10
x=-10/10=-1


( 304 - 117 + 27 ) + x - 15 = 300
199+x=300
x=300-199
x=101