Question

Resolva as equaçoes a seguir, sendo U=R:
a ) 5x - 7 = 3x+13​

Answer 1

• $\sf{5x-7=3x+13}$

• $\sf{5x-3x=13+7}$

• $\sf{2x=20}$

• $\sf{\:\:\:x=\dfrac{20}{2}}$

• $\boxed{x=10}$

Logo a solução será: { 10 }