19.7k views
2 votes
Please help it would mean so much!!

4x-3(x-2)=21

User FrankIJ
by
5.5k points

2 Answers

2 votes

4x-3(x-2)=21

4x-3x+6=21

4x-3x=21-6

x=15

is this right? let's check

4(15)-3(15-2) = 21? yes

User Charles Cooke
by
5.4k points
5 votes

For this case we have the following expression, we must find the value of the variable "x":


4x-3 (x-2) = 21

We apply distributive property to the terms of the parenthesis taking into account that:


- * + = -\\- * - = +\\4x-3x + 6 = 21

We add similar terms:


x + 6 = 21

We subtract 6 on both sides of the equation:


x = 21-6\\x = 15

Now, the value of x is 15

Answer:


x = 15

User Squawknull
by
5.6k points