Question

Me ayudan por favor plisss

Answer 1

Respuesta:

$3θ + θ = x \\ 4θ = x \\ θ = \frac{x}{4} \\ 20 + 3θ = x \\ 20 + 3( \frac{x}{4} ) = x \\ 20 + \frac{3x}{4} = x \\ 80 + 3x = 4x \\ 80 = x$