If 7 || m, find the value of x
(9x - 4)' Us 4+ (5x + 16)"

Step-by-step explanation:

9x - 4 + 5x + 16 = 180

14x + 12 = 180

14x = 168

x = 12

Step-by-step explanation:

We know that .

Then by the properties of a transversal cutting a pair of parallel lines, we can write:

The property used here is the Consecutive Angles Property. The two consecutive angles are supplementary.

Now, we can solve for x. Rearrange:

Combine like terms:

Subtract 12 from both sides:

Divide both sides by 14:

So, the value of x is 12.

step-by-step explanation:

a rhombus is a parallelogram enjoying his symmetry.

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,