How many solutions does this equation have?

−4(5 − 3x) = 12x + 20
Responses
A no solutionno solution
B one solutionone solution
C two solutionstwo solutions
D infinitely many solutions

1 answer

To determine how many solutions the equation \(-4(5 - 3x) = 12x + 20\) has, we will first simplify both sides of the equation.

  1. Distribute on the left side: \[ -4(5 - 3x) = -4 \cdot 5 + (-4) \cdot (-3x) = -20 + 12x \] So the left side becomes: \[ -20 + 12x \]

  2. Now, our equation looks like: \[ -20 + 12x = 12x + 20 \]

  3. Next, let's subtract \(12x\) from both sides: \[ -20 = 20 \]

This simplifies to a statement that is false (\(-20\) does not equal \(20\)).

Since we have arrived at a contradiction, it means that the original equation has no solutions.

The answer is: A) no solution.