Solve the system of equations.
\begin{aligned} & -5x+2y = 9 & y=7x \end{aligned}


−5x+2y=9
y=7x


x=x=x, equals
y=y=y, equals

Solution:

Given system of equations are:

-5x + 2y = 9 eqn 1

y = 7x eqn 2

We have to solve the system of equations

Substitute eqn 2 in eqn 1

-5x + 2(7x) = 9

-5x + 14x = 9

Combine the like terms : -5x + 14x = 9x

Therefore,

9x = 9

Divide both sides by 9

Substitute x = 1 in eqn 2

y = 7(1)

Thus solution is (x, y) = (1, 7)

line or a linear equation graph

step-by-step explanation:

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right