Question

encontre o valor de X

a) x+x=25

b) 16+x=43

c) x+25=43

d) x+(x+1)=25

Answer 1

a)
$x + x = 25$
$2x = 25$
$x = \frac{25}{2}$
$x = 12.5$
b)
$16 + x = 43$
$x = 43 - 16$
$x = 27$
c)
$x + 23 = 43$
$x = 43 - 25$
$x = 18$
d)
$x + (x + 1) = 25$
$x + x + 1 = 25$
$2x + 1 = 25$
$2x = 25 - 1$
$2x = 24$
$x = \frac{24}{2}$
$x = 12$