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5×[128÷2×4+(x ori y--41)×3]=2015
X=?y=?


Răspuns :

5x[128÷2x4+(x×y-41)x3]=2015
64x4+(x×y-41)x3=403
256+(x×y-41)x3=403
(x×y-41)x3=147
x×y-41=49
x×y=90(dai valori nr x si y astfel incat sa respecte ceea ce ai obtinut)
5×[128÷2×4+(x ·y-41)×3]=2015
[64×4+(x ·y-41)×3]=2015:5
256+(x ·y-41)×3=403
(x ·y-41)×3=403-256
(x ·y-41)×3=147
x ·y-41=403:3
x ·y-41=49
x ·y=49+41
x ·y=90


x=1 y=90
x=2 y=45
x=3 y=30
x=5 y=18
x=9 y=10
x=10 y=9
x=18 y=5
x=30 y=3
x=45 y=2
x=90 y=1