Question

Ecuaciones:
1) 7x - 3x = 64

2) 3x - 13 = 17 - 2x

Answer 1

1)

$7x - 3x = 64$

$4x = 64$

$\frac{4x}{4} = \frac{64}{4}$

$x = 16$

2)

$3x - 13 = 17 - 2x$

$3x + 2x = 17 +13$

$5x = 30$

$\frac{5x}{5} = \frac{30}{5}$

$x = 6$