Question

Calcule 3 (× -14) =7 (×-18)

Answer 1

Olá

$3(x - 14) = 7(x - 18)$

$3x - 42 = 7x - 126$

$3x - 7x = - 126 + 42$

$- 4x = - 84$

$x = \frac{ - 84}{ - 4}$

R: $x = 21$

Espero ter ajudado e bons estudos :)

Answer 2

Oiee,

3(x- 14 ) = 7 (x - 18)

3x - 42 = 7x - 126

3x - 7x = 42 - 126

-4x = - 84

4x = 84

x = 84/4

x = 21