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brilliants [131]
4 years ago
12

5(x+2)-7=3x+5 Please give step by step explanation

Mathematics
2 answers:
Brums [2.3K]4 years ago
4 0

Answer:

x = 1

Step-by-step explanation:

Solve using inverse operations

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

first distribute the 5

5x + 10 - 7 = 3x + 5

simplify the expression

5x + 3 = 3x + 5

Inverse operations, then simplify

5x + 3 = 3x + 5

-3               -3

5x = 3x + 5 - 3

5x = 3x + 2

-3x    -3x

2x = 2

/2     /2

x = 1

yKpoI14uk [10]4 years ago
4 0

Answer: X = 1

Step-by-step explanation

Step 1: First distribute the 5. 5*x = 5x 5*2=10

Step 2: So now you have 5x+10-7=3x+5

Then you want to combine like terms (CLT)

10-7= 3

5x+3=3x+5

Step 3: Now you want to have opposite integers

5x+3=3x+5

    -3       -3

5x=3x+2

Step 4: Like the last step but with the numbers that have variables

5x=3x+2

-3x -3x

2x=2

Step 5: Now you want to divide the variable with the whole number

2x=2

_____

2      2

x = 1

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we know that

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\frac{0.71}{1} \frac{cookies}{minutes}= \frac{40}{x} \frac{cookie}{minutes} \\\\0.71*x=40\\x=56.34 \ minutes

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<u>the answer is</u>

56.34\ minutes

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