Question

2.5 x + 100 = 4 x + 80

Answer 1

Explicación paso a paso:

$2.5x + 100 = 4x + 80$

$100 - 80 = 4x - 2.5$

$20 = 1.5$

$20 = \frac{3}{2} x$

$\frac{3}{2} \div 20 = x$

$\frac{2}{3} \times 20 = x$

$\frac{40}{3} = x$

$x = \frac{40}{3}$

$x = 13.33...$