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Basic Maths equations,please help,stars rated :) any help is appreciated?

Solving equations - Find the value of y

1.) y + 2 = 10

2.) y - 3 = 10

3.) 4y = 20

4.) 5y + 2 = 32

5.) y + 4 = 7

6.) y - 9 = 3

Solving equations - find the value of each letter

1.) 3 ( 2y - 1) = 21

2.) 2w + 8 = 2

3.) 5 ( 2p + 4 ) = 30

4.) 4t - 20 = 2

2 Answers

Relevance
  • 6 years ago

    1.) y + 2 = 10 <---- pass +2 to the rigt side aas -2

    y=10-2 so y=8

    2.) y - 3 = 10 <- must pass the -3 to rigt side as +3

    y=10+3 then y=13

    3.) 4y = 20 <--- the four is multipling at left side , then pass to rigt side to divide

    y=20/4 the y=5

    4.) 5y + 2 = 32 <---- must pass the +2 to the rigt side as -2

    5y=32-2

    5y=30 <---- must pass the 5 to the rigt side as divide

    y=30/5 then y=6

    5.) y + 4 = 7 <---- must pass the +4 to rigth side as -4

    y=7-4 then y=3

    6.) y - 9 = 3 <---- must pass the -9 to the rigt as +9

    y=3+9 then y=12

    --------------- --------------------- ------------------------- ----------------- --------------------- -------------

    1.) 3 ( 2y - 1) = 21 <---- must do the mulltiplication of 3 with 2y-1

    6y-3=21 <----- pass -3 to rigth side as +3

    6y=21+3

    6y=24 <---- must pass the 6 to the rigt side to divide

    y=24/6 then y=4

    2.) 2w + 8 = 2 <---- must pass +8 to rigt side as -8

    2w=2-8

    2w=-6 <---- must pass 2 to rigt side as divide

    w=-6/2 then w=-3

    3.) 5 ( 2p + 4 ) = 30

    10p+20=30

    10p=30-20

    10p=10

    p=10/10

    p=1

    4.) 4t - 20 = 2

    4t=2+20

    4t=22

    t=22/4

    t=11/2

    note when we have a fration

    we can divide numerator and denominator from the same number

    so

    22'''''' 22/2 '''''' 11

    ---- = ------ =--------

    4 ''''''' 4/2 ''''''''''' 2

  • Anonymous
    5 years ago

    Well, I do know it some, but since you been so mean, I'm not going to help you.

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