Question

resolva as expresao (3 3/4-3/4)+(1 3/4+3/4)

Answer 1

$(3x \frac{3}{4}- \frac{3}{4})+( \frac{3}{4}+ \frac{3}{4})$
$(3x \frac{3}{4}- \frac{3}{4})+ \frac{3+3}{4} )$
$(3x \frac{3}{4}- \frac{3}{4})+ \frac{6}{4}$
$3x \frac{3}{4}- \frac{3}{4}+ \frac{6}{4}$
$3x \frac{3}{4}+ \frac{-3+6}{4}$
$3x \frac{3}{4}+ \frac{3}{4}$
$\frac{3x3}{4}+ \frac{3}{4}$
$\frac{3x3+3}{4}$
$\frac{9+3}{4}$
$\frac{12}{4}$
x=3