Solve the system by Substitution.
x- 4y=-7
-x +2y = 3

Intro:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

Solve x−4y=−7 for x...

Substitute 4y−7 for x in −x+2y=3...

Substitute 2 for y in x=4y−7...

So the solution of these equations is (1,2).

in the math equation 8 x 7 = 56, the 8 and the 7 are both factors of 56, since in this lesson we will use square tiles to figure out the factors of a whole find as many different arrays as you can, but follow one important rule: all the rows must have the i can make two rows of nine, so 2 and 9 are both factors of 18.

step-by-step explanation:

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)