6 Green and Blue formative quiz

Simplify:

1y - 2x - 3y + 4x

• -2x + 2x

• -2y + 2x

• -4y - 6x

• 2y - 2x

Simplify:

5x - 6x - 8x + 7

• -9x + 7

• 10x + 7

• 9x + 7

• 9x - 7

Simplify:

4a + 9 + a

• 5a + 9

• 14a

• 3a + 9

• 5a - 9

Simplify:
20x + 27y + 38y + 29x

• 49y + 64x
• 49y + 65x
• 49x + 65y
• 49x - 65y

Simplify:

6b + 7b - 10

• 3b

• 13b - 10

• 13b² - 10

• 3b²

Simplify:

9z - 21 - 3z + 10

• Simplified

• 9z - 21 - 7

• 9z - 11 -3z

• 6z - 11

Simplify:

w + w + w

• 3w

• 3

• w

• 0

Simplify:

r +10r

• 11r

• -11r

• 9r

• -11

Simplify:

x²+2−1+6x²−4x²

• x ² -1

• x² +1

• 3x² +1

• x ²+3

4x+2x+3x

• 10x

• 9x

• 11x

• 8x