Answer:
infinite number of solutions
Explanation:
given the equation
9x + 5(2x + 11) = 3(x + 21) + 2(8x - 4) ← distribute parenthesis on both sides
9x + 10x + 55 = 3x + 63 + 16x - 8 ( simplify both sides )
19x + 55 = 19x + 55
since both sides of the equation are the same, then any value of x will make the equation true.
the equation has an infinite number of solutions