Question

resolva as equações d) 5+4 (×-2)=-1 (×-10)​

Answer 1

$\large \boxed{ \begin{array}{l} \rm \: 5 + 4(x - 2) = - 1(x - 10) \\ \\ \rm \: 5 + 4x - 8 = - (x - 10) \\ \\ \rm \: - 3 + 4x = - x + 10 \\ \\ \rm \: 4x + x = 10 + 3 \\ \\ \rm \: 5x = 13 \\ \\\boxed{\rm{x = \dfrac{13}{5}}}\end{array}}$

Answer 2

Resolva as equações :

d) 5+4 (×-2)=-1 (×-10)​

5+4x - 8 = - x + 10

- 3 + 4x = - x + 10

4x + x = 10 + 3

5x = 13

x = 13/5

Resp.: x = 13/5