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5(2x-3)+4(4x+7)-48=3(2x+1)+4(x+3)+30 OFER COROANA


Răspuns :

10x-15+16x+28-48=6x+3+4x+12+30
26x+28-63=10x+45
26x-10x=45+63-28
16x=108-28
16x=80
x=80:16=5
x=5