Solve for the value of x and make the equation true. The first is done for you.
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#SecretSisters
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DIRECTIONS:
Solve for the value of x and make the equation true. The first is done for you.
2.) 5x - 7 = 3x + 3
• 5x - 3x = 7 + 3
•2x = 10
•x = 10/2
•x = 5
•5(5) - 7 = 3(5) + 3
•25 - 7 = 15 + 3
•18 = 15 + 3
•18 = 18✔
3.) 2(8x - 5) + 4 = 42
•2(8x - 5) + 4 = 42
•16x - 10 + 4 = 42
•16x - 6 = 42
•16x = 42 + 6
•16x = 48
•x = 48/16
•x = 3
•2(8(3) - 5) + 4 = 42
•2(24 - 5) + 4 = 42
•2(19) + 4 = 42
•38 + 4 = 42
•42 = 42✔
4.) 5(6x + 2) - 1 = 69
•5(6x + 2) - 1 = 69
•30x + 10 - 1 = 69
•30x + 9 = 69
•30x = 69 - 9
•30x = 60
•x = 60/30
•x = 2
•5(6(2) + 2) - 1 = 69
•5(12 + 2) - 1 = 69
•5(14) - 1 = 69
•70 - 1 = 69
•69 = 69✔
5.) 10 = 5(2x - 4)
•10 = 5(2x - 4)
•10 = 10x - 20
•10x = 20 + 10
•10x = 30
•x = 30/10
10 = 5(2(3) - 4)
10 = 5(6 - 4)
10 = 5(2)
10 = 10✔
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Answers & Comments
DIRECTIONS:
Solve for the value of x and make the equation true. The first is done for you.
2.) 5x - 7 = 3x + 3
=======================
3.) 2(8x - 5) + 4 = 42
=======================
4.) 5(6x + 2) - 1 = 69
=======================
5.) 10 = 5(2x - 4)
=======================
#SecretInTandem
#SecretSisters
#SecretSquad
=======================
DIRECTIONS:
Solve for the value of x and make the equation true. The first is done for you.
2.) 5x - 7 = 3x + 3
Solution:
• 5x - 3x = 7 + 3
•2x = 10
•x = 10/2
•x = 5
Checking:
•5(5) - 7 = 3(5) + 3
•25 - 7 = 15 + 3
•18 = 15 + 3
•18 = 18✔
=======================
3.) 2(8x - 5) + 4 = 42
Solution:
•2(8x - 5) + 4 = 42
•16x - 10 + 4 = 42
•16x - 6 = 42
•16x = 42 + 6
•16x = 48
•x = 48/16
•x = 3
Checking:
•2(8(3) - 5) + 4 = 42
•2(24 - 5) + 4 = 42
•2(19) + 4 = 42
•38 + 4 = 42
•42 = 42✔
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4.) 5(6x + 2) - 1 = 69
Solution:
•5(6x + 2) - 1 = 69
•30x + 10 - 1 = 69
•30x + 9 = 69
•30x = 69 - 9
•30x = 60
•x = 60/30
•x = 2
Checking:
•5(6(2) + 2) - 1 = 69
•5(12 + 2) - 1 = 69
•5(14) - 1 = 69
•70 - 1 = 69
•69 = 69✔
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5.) 10 = 5(2x - 4)
Solution:
•10 = 5(2x - 4)
•10 = 10x - 20
•10x = 20 + 10
•10x = 30
•x = 30/10
•x = 3
Checking:
10 = 5(2(3) - 4)
10 = 5(6 - 4)
10 = 5(2)
10 = 10✔
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