Question

foarte urgent imi trebue ​

Answer 1

Explicație pas cu pas:

$4(3 - 2x) + 24 = 2(3 + 2x) \\ 12 - 8x + 24 = 6 + 4x \\ 36 - 8x = 6 + 4x \\ 4x + 8x = 36 - 6 \\ 12x = 30 \\ x = \frac{30}{12} = > x = \frac{5}{2}$

$3(2x - 1) = 7 \frac{3}{4} \\ 3(2x - 1) = \frac{31}{4} \\ 12(2x - 1) = 31 \\ 24x - 12 = 31 \\ 24x = 31 + 12 \\ 24x = 43 = > x = \frac{43}{24} = 1 \frac{19}{24}$

$5.6 + (x - 1 \frac{1}{2}) = 7.3 \\ x - \frac{3}{2} = 7.3 - 5.6 \\ x - 1.5 = 1.7 \\ x = 1.7 + 1.5 = > x = 3.2$

Answer 2

Ai răspuns atașat pe foaie.