Question

oi
1. Calcular o valor x :
a) 3x = 3
b) 4x = 12
c) 5x = 50 - 25
d) 3x + 5x = 880​

Answer 1

$\boxed{\begin{array}{l}\rm{1)}~\tt{Calcular~o~valor~de~x:}\end{array}}\\\tt{a)}~\sf{3x=3}\\\sf{x=\dfrac{3}{3}}\\\Large\boxed{\boxed{\boxed{\sf{x=1}}}}\\\tt{b)}~\sf{4x=12}\\\sf{x=\dfrac{12}{4}}\\\boxed{\boxed{\boxed{\boxed{\sf{x=3}}}}}\\\tt{c)}~\sf{5x=50-25}\\\sf{5x=25}\\\sf{x=\dfrac{25}{5}}\\\huge\boxed{\boxed{\boxed{\boxed{\sf{x=5}}}}}\\\tt{d)}~\sf{3x+5x=880}\\\sf{8x=880}\\\sf{x=\dfrac{880}{8}}\\\huge\boxed{\boxed{\boxed{\boxed{\sf{x=110}}}}}$