Question

2×{12+3×[60-3×(27-4×3)]}-5x=7

Answer 1

2*{12+3×[60-3×(27- 12)]}-5x=7
2*[12+3×(60-3×15]-5x=7
2*[12+3×(60-45]-5x=7
2*[12+3*15)-5x=7
2*(12+3×15)-5x=7
2*(12+45)-5x=7
2*57-5x=7
114-5x=7
114 - 7 =5x
107 = 5x
x= 107 / 5
se pare ca ne da cu virgula

Answer 2

Respectam ordinea operatiilor. Mai inatai paranteza ( ) si in interior mai intai inmultirea, dupa aceea scaderea, apoi paranteza [ ], mai intai inmultirea, apoi scaderea......

2x{12+3x[60-3x1(27-12)]}-5X=7
2x[12+3x(60-3x15)]-5X=7
2x[12+3x(60-45)]-5X=7
2x(12+3x15)-5X=7
2x(12+45)-5X=7
2x57-5X=7
114-5X=7
Trecem 5Xin partea dreapta si 7 in partea stanga, cu schimbarea semnelor
114-7=5x
5x=107
x=107/5