Question

a) 3 (x -7) = 3
b) -2 ( y -2) +7 = 10
c) 3x + 7/2 = 5/2
d) 3/4x = -9/16
e) 9 = 3( P -7)​

Answer 1

Step-by-step explanation:

a) 3x - 21 = 3

3x=24

x=8

b) -2y+4+7=10

-2y+11=10

-2y= -1

y=1/2

c)3x=5/2-7/2

3x= -1

x= -1/3

d)3x × 16 = -9×4

x = -9×4/3×16

x= -3/4

e)9=3p-21

3p= 30

p=10

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Answer 2

Step-by-step explanation:

a) 3(x-7)=3

x-7=3/3

x-7=1

x=8

b) -2(y-2)+7=10

-2y+4+7=10

-2y+11=10

-2y=-1

y=-1/-2

y=1/2

c) 3x +7/2=5/2

3x=(5/2)-(7/2)

3x=-1

x=-1/3

d) (3/4)x=-9/16

x=(-9/16)/(3/4)

x=-3/4

e)9=3(P-7)

3(P-7)=9

P-7=9/3

P-7=3

P=3+7

P=10