Sutarjo Sutarjo

18-08-2019
Mathematics

contestada

solve for x: 5a + 7x = 3(2a + 1) +4x

Respuesta :

18-08-2019

Answer:

[tex]\dfrac{a + 3}{3}[/tex]

Step-by-step explanation:

[tex]\begin{array}{rcl}5a + 7x & = & 3(2a +1) + 4x\\5a + 7x & = & 6a +3 + 4x\\7x & = & a + 3 + 4x\\3x & = & a + 3\\x & = & \mathbf{\dfrac{a + 3}{3}}\\\end{array}[/tex]

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