Equações do 1º grau

When a term moves from one side of an equality to the other in a first-degree equation, what happens to its sign?

• It remains the same.

• It changes to its opposite.

• It becomes positive.

• It becomes negative.

What is the value of x in the equation 2x + 3 = -5?

• x = 4

• x = -4

• x = 1

• x = -1

What is the value of x in the equation 4x + 13 = 37?

• x = 12

• x = 8

• x = 6

• x = 4

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What is the solution to the equation -5x = 5?

• -1

• 1

• 0

• -5

What is the solution to the equation 4x/5 + 1 = 9?

• 8

• 9

• 10

• 5