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Which of these is a simplified form of the equation 7x + 4 = 5 + 3x + 1x?​

2 Answers

7 votes

Answer:

3x = 1

or 1/3

Explanation:

Simplify the equation 7x + 4 = 5 + 3x + 1x

First, combine like terms to get 7x + 4 = 5 + 4x

Next, Move Variables to get coefficients on one side and constants on other:

7x + 4 - 4 = 5 + 4x - 4

7x - 4x = 5 + 4x - 4 - 4x

7x - 4x = 5 - 4

3x = 1

User Alan Judi
by
3.6k points
5 votes

Answer:

x = 1/3

Explanation:

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other.

First, combine like terms:

7x + 4 = 5 + (3x + 1x)

7x + 4 = 5 + 4x

Isolate the variable, x. Subtract 4 and 4x from both sides:

7x (-4x) + 4 (-4) = 5 (-4) + 4x (-4x)

7x - 4x = 5 - 4

3x = 1

Isolate the variable, x. Divide 3 from both sides of the equation:

(3x)/3 = (1)/3

x = 1/3

x = 1/3 is your answer.

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User Garrett R
by
3.7k points