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Pls..49...50... Repede!!!

Pls4950 Repede class=

Răspuns :

49. a+3+b×3=759
a+3=759-b×3
a=759-b×3-3
a-b=59
759-b×3-3-b=59
759-(4b+3)=59
759-59=4b+3
4b+3=700
4b=700-3
b=697:4
b=174,25
a-b=59
a-174,25=59
a=59+174,25
a=233,25

59. 144:a=b×b
144:4=36=6×6

Sper ca te-am ajutat!