Isolating Variables in Equations

What is the first step to isolate 'x' in the equation y = mx + b?

• Divide both sides by m

• Add b to both sides

• Subtract b from both sides

• Multiply both sides by m

What is the solution for 'x' when solving the equation y = mx + b for x?

• x = y - b + m

• x = (y + b) / m

• x = (y - b) / m

• x = m(y - b)

What is the solution for 'y' when solving the equation ax + by = c for y?

• y = (c + ax) / b

• y = c - ax - b

• y = (c - ax) / b

• y = b(c - ax)

• b = (2A/h) + c

• b = (2A/h) - c

• b = 2A - hc

• b = (A/h) - c

What is the first step to isolate 'r' in the equation A = πr²?

• Divide both sides by π

• Take the square root of both sides

• Multiply both sides by r

• Subtract π from both sides

After dividing both sides by π, what operation is performed to isolate 'r' in the equation A = πr²?

• Square both sides

• Take the square root of both sides

• Multiply both sides by r

• Add π to both sides