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KaramBanana2k20
a fost răspuns

[8×(5×b+4)-2×(5×b+4)]:3=48​

Răspuns :

Madalin01vaicar
[8x(5xb+4)-2x(5xb+4)]:3=48
8x(bx5+4)-2x(bx5+4)=48x3
(8-2)(5xb+4)=144
6(5xb+4)=144
5xb+4=144:6
5xb+4=24
5xb=24-4
5xb=20
b=20:5
b=4


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