Răspuns :
[tex] \frac{x}{2} + (3*123)-(4*53) = 257 \\ \\ \frac{x}{2} + 369-212 = 257 \\ \\ \frac{x}{2}+369 = 257+212 \\ \\ \frac{x}{2} + 369 =469 \\ \\ \frac{x}{2} = 469-369 \\ \\ \frac{x}{2} = 100 \\ \\ x= 2*100 \\ \\ x = 200 [/tex]
x\2+(3•123)-(4•53)=257
x\2+369-212=257
x\2+369=257+212
x\2+369=469
x\2=469-369
x\2=100
x=100•2
x=200
sper ca te-am ajutat!!!!!!!!
x\2+369-212=257
x\2+369=257+212
x\2+369=469
x\2=469-369
x\2=100
x=100•2
x=200
sper ca te-am ajutat!!!!!!!!