Question

4ª) Sendo a equação 4x + 10 = 45 – 3x. Qual o valor de X:

a) 2

b)-5

c) 5

d-3

e) 4​

Answer 1

Resposta: C) 5

Explicação passo-a-passo:

$4x+10= 45-3x\\4x+3x=45-10 \\7x= 35\\x= \frac{35}{7} \\x=5$

Answer 2

$\Large{\begin{array}{l}\sf 4x+10=45-3x\\\\\sf 4x+3x=45-10\\\\\sf 7x=35\\\\\sf x=\dfrac{35}{7}\\\\\boxed{\boxed{\sf x=5}}\leftarrow\textsf{Letra C}\end{array}}$