Question

por favor me ajudem ​

Answer 1

Vamos lá

Cálculos:

A)

$\boxed{\begin{array}{lr} \large \sf 5x-3x=30 \\ \\ \large \sf 2x=30 \\ \\ \large \sf x=\dfrac{30}{2} \\ \\ \large \sf x=15 \end{array}}$

Resposta:

$\boxed{\boxed{\sf x=15}}\Longleftarrow$

B)

$\boxed{\begin{array}{lr} \large \sf 4x+10=45-3x\\ \\ \large \sf 4x+3x=45-10 \\ \\ \large \sf 7x=35 \\ \\ \large \sf x=\dfrac{35}{7} \\ \\ \large \sf x=5 \end{array}}$

Resposta:

$\boxed{\boxed{\sf x=5}}\Longleftarrow$

Bons estudos =)