Question

b)7x+1=43
c)3x+6=27
d)3.(x+9)=30
e)4x-2=42
f)6x=72

Answer 1

B)

7x + 1 = 437x = 43 - 1
7x = 42
x = 42/7
 x = 6

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c)
3x + 6 = 27
3x = 27 - 6
3x = 21
x = 21/3
x = 7

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d)

3.(x + 9) = 30
3x + 27 = 30
3x = 30 - 27
3x = 3
x = 3/3
x = 1

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e)
4x - 2 = 42
4x = 42 + 2
4x = 44
x = 44/4
x = 11

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f)
6x = 72
x = 72/6
x = 12

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