Please answer I just do not get it

EVALUATE: solve

SIMPLIFY (in this case): find the simplest form of the expression, meaning you have to combine like terms

123 - 2x - 3x + 7       this is the original equation

To make it easier: spread apart the terms and add them together like so:

123 & 7

-2x & -3x

Add them together to get

130 - 5x THIS IS THE SIMPLEST FORM OF THE ORIGINAL EXPRESSION

Now, evaluate the expression when x equals 5, meaning you should substitute x for 5 wherever you see an x.

130 - 2 (5)

130 - 10

120 THIS IS THE VALUE OF THE EXPRESSION (ur second answer)

step-by-step explanation:

here's what happens:

1) the graph of f   = x^2 is shifted 2 units to the right.

2) the resulting graph is reflected in the x-axis, so that the parabola now opens down.

3) this final result is transformed up by 5 units.

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.