Question

b) 0,5(x-2) + 2,3x = 5x - 4;​

Answer 1

Explicație pas cu pas:

$\mathbf{b) \: 0.5(x - 2) + 2.3x = 5x - 4}$

$\mathbf{0.5x - 1 + 2.3x = 5x - 4}$

$\mathbf{2.8x - 1 = 5x - 4}$

$\mathbf{2.8x - 5x = - 4 + 1}$

$\mathbf{ - 2.2x = - 3}$

$\mathbf{x = 3 \div \frac{11}{5} = 3 \times \frac{5}{11} }$

$\mathbf{x = \frac{15}{11} }$

Bafta!