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Given: -3(4x + 1) = 21
Prove: x = -2

2 Answers

7 votes

Answer:

-3(4x + 1) = 21 given

4x + 1 = -7 Division Property of Equality

4x = -8 Subtraction Property of Equality

x = -2 Division Property of Equality

User Herrmartell
by
8.4k points
2 votes

Answer:

see explanation

Explanation:

prove by solving the equation

- 3(4x + 1) = 21 ( divide both sides by - 3 )

4x + 1 = - 7 ( subtract 1 from both sides )

4x = - 8 ( divide both sides by 4 )

x = - 2

thus solution is x = - 2

User Chris Smeele
by
8.0k points

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