Question

As expressões (x-5), (2x-9), (3x-13) é (4x-3) representam números, cuja a soma é 90. Qual maior desses números?

Answer 1

$\Large\boxed{\begin{array}{l}\sf x-5+2x-9+3x-13+4x-3=90\\\sf10x=90+5+9+13+3\\\sf 10x=120\\\sf x=\dfrac{120}{10}\\\\\sf x=12\end{array}}$

$\Large\boxed{\begin{array}{l}\sf x-5=12-5=7\\\sf 2x-9=2\cdot12-9=24-9=15\\\sf 3x-13=3\cdot12-13=36-13=23\\\sf 4x-3=4\cdot12-3=48-3=45\\\sf o\,maior\,n\acute umero\,\acute e\,45\checkmark\end{array}}$

Answer 2

Resposta:

45

Explicação passo a passo:

x-5 + 2x-9+3x-13 + 4x - 3 =90

x+2x+3x+4x = 90+5+9+13+3

10x = 120

x= 120/10

x = 12

(x-5) = 12 - 5 = 7

(2x-9)= 2.12 - 9 = 24 - 9 = 15

(3x-13)= 3.12-13= 36-13 = 23

(4x - 3)= 4.12-3 = 48-3 = 45//