Gr7 Quiz1 Revision 2sem

Four more than twice a number is 8.

• 8n + 4 = 2

• 4n + 2 = 8

• 2n + 8 = 4

• 2n + 4 = 8

Three more than four times a number is 15.

• 4x + 3 = 15

• 3x + 4 = 15

• 4x + 15 = 3

• 15x + 3 = 4

Seven more than the quotient of a number and 2 is 10.

• 2/m + 7 = 10

• n/7 + 2 = 10

• n/2 + 7 = 10

• n/2 + 10 = 7

WRITE AN EQUATION

331 students went on a field trip. Six buses were filled and 7 students traveled in cars. How many students were in each bus?

• 7x+6=331

• 13x=331

• 6x+7=331

• 331-7=6x

solve the equation: 2x - 6 = 12

x=

• 9
• 3
• 5

• • - 12

• 3.5

• 14

4 ( b -2 ) = 8

b =

• b = 2

• b = 4

• b = - 4

• x = 8

• x = - 6

• x = 12

• - 3 ( y - 4 ) = 33

• y =

• y = 3

• y = -3

• y = -7

3 ( x + 2.2 ) = 4.8

• x = 1.5
• x = 3

• x = - 0.6