Please help it would mean so much!! 4x-3(x-2)=21

Mathematics

2 answers:

GaryK [48]2 years ago

8 0

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

dexar [7]2 years ago

7 0

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:

$x = 15$

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