Homework Maths

1.)    6x + 2 = 68

(-2) 6x = 66 (-2)

(/6) x = 11 (/6)

x = 11

2.)    3x + 9 = 9

(-9) 3x = 9 (-9)

(/3) x = 3 (/3)

x = 3

3.)    5x + 4 = 14

(-4) 5x = 10 (-4)

(/5) x = 2 (/5)

x = 2

4.)    6x + 10 = 10

(-10) 6x = 0 (-10)

(/6) x = 0 (/6)

x = 0

5.)    7x + 4 = 32

(-4) 7x = 28 (-4)

(/7) x = 4 (/7)

x = 4

6.)    7 + 7x = 49

(-7) 7x = 42 (-7)

(/7) x = 6 (/7)

x = 6

7.)    6x + 6 = 78

(-6) 7x = 72 (-6)

(/6) x = 12 (/6)

x = 12

8.)    2x + 9 = 17

(-9) 2x = 8 (-9)
(/2) x = 4 (/2)
x = 4

9.)    2 + 5x = 7

(-2) 5x = 5 (-2)

(/5) x = 1 (/5)

x = 1

10.)    1 + 7x = 85

(-1) 7x = 84 (-1)

(/7) x = 12 (/7)

x = 12