3ro básico

Simplify the expression: 3x + 2y - 5x + 4y

• -2x + 6y

• -2x + 6y

• x + 4y

• -2x + 2y

Find the solution to the equation: 2x + 7 = 15

• x = 4

• x = 10

• x = 6

• x = 5

Identify the like terms in the expression: 4a + 2b - 3a + 5b

• 4a + 3a + 2b + 5b

• 4a - 3a + 2b - 5b

• 4a - 3a - 2b - 5b

• 4a - 3a + 2b + 5b

Interpret the result of solving the equation: 3(x + 4) = 21

• x = 5

• x = 10

• x = 7

• x = 3

Apply variable elimination to solve for x: 2x + 3 = 11

• x = 4

• x = 3

• x = 2

• x = 5

Simplify the expression: 5x - 2y + 3x + 4y

• 2x + 6y

• 8x + 2y

• 7x + 2y

• 8x - 2y

Solve the equation: 4(x - 3) = 20

• x = 5

• x = 10

• x = 15

• x = 8

Identify the like terms in the expression: 2m + 3n - 4m + 5n

• 2m + 3n - 4m

• 3n - 5n

• 2m + 4m

• 2m - 4m, 3n + 5n

Interpret the result of solving the equation: 2(3x - 5) = 16

• x = 7

• x = 13/3

• x = 5

• x = 10

Apply variable elimination to solve for y: 3y - 7 = 11

• y = 10

• y = 6

• y = 8

• y = 5