Question

3(x - 4) = - 20 also verify​

Answer 1

Step-by-step explanation:

x+7=10

This problem can be solved by subtracting 7 from each side.

x+7-7=10-7x+7−7=10−7

x=3x=3

Once the problem is solved, the solution can be verified by rewriting the problem with 3 substituted for xx.

3+7=103+7=10

10=1010=10

Both sides are equal, verifying that x=3x=3 is a valid solution.

Answer 2

In context to question asked,

We have to determine the value of "x" in the above given equation.

From the question,

It is given that,

$3(x - 4) = - 20$

So, for determining the value of "x" first we will multiply the 3 by (x-4) and then solve the given expression by separating the like terms on one side.

Thus we will get,

$3(x - 4) = - 20\\=>3x-12 = -20\\=>3x = -20+12\\=>3x = -8\\=>x = -\frac{8}{3}$

Hence, value of "x" in above expression will be $-\frac{8}{3}$