Question

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

Answer 1

Answer:

$\dfrac{a + 3}{3}$

Step-by-step explanation:

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