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Rezolvati ecuatiile:
a) 59x-208=49x +102
b) 11(y-23)=121


Răspuns :

[tex]a).59x-208=49x+102 \\ 59x-49x=102+208 \\ 10x=310 \\ x= \frac{310}{10} \\ x=31 \\ b).11(y-23)=121 \\ y-23= \frac{121}{11} \\ y-23= 11 \\ y=11+23 \\ y=34[/tex]
a) 59x-208=49x +102

59x-49x=102+208
10x=310
x=31


b)  11(y-23)=121
11y-253=121
11y=121+253
11y=374
y=34