Simplify the algebraic expression by combining like terms.

-x^2+5x

Step-by-step explanation:

Okay. Let us start by underlining those like terms:

7x^2 - 5x +10x  -8x^2

7x^2-8x^2     -5x+10x (I basically grouped the like terms together)

-x^2    +5x (I solved it in those groups)

-x^2+5x   (answer)

the solution is the point

step-by-step explanation:

we have

> equation a

> equation b

adds equation a and equation b

substitute the value of x in equation b to find the value of y

the solution is the point

c) yes, because of asa or aas