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3 votes
3 votes
Solve the following equation 7x + 14=28

User Kamrul Khan
by
3.1k points

2 Answers

7 votes
7 votes

Answer:

x = 2

Explanation:

The Question was:
7x + 14 = 28

Subtract 14 from both sides.

7x = 28 − 14

Subtract 14 from 28 to get 14.

7x = 14

Divide both sides by 7.

x = 14/7

Divide 14 by 7 to get 2.

x = 2

User Megadan
by
2.4k points
21 votes
21 votes

Answer:

x=2

Explanation:

To solve a question like that, we have to isolate the variable.

What is the variable? A variable is a letter partaking in an equation that is in place of a number or solution that makes the equation true.

In this case, the variable is x.

To isolate the variable, we must do the opposite action that is being done to the number.

For example, if a number was added to one side by 28, we can subtract both sides by 28 so it negates the addition and does not alter the original equation.

7x+14=28 We can subtract the 14 on both sides to negate the -14 -14 addition.

7x=14 Divide each side by 7 to isolate x.

x=2

User Mouhammed
by
2.7k points