8)
solve the system 2x + 5y = 7 and 3x + 4y = 6 by elimination. which procedure produces opposite terms to eliminate x? include
proper justification.
multiply the first equation by 3 and multiply the second equation by -2.
this is justified by the commutative property of addition
multiply the first equation by 4 and multiply the second equation by -5.
this is justified by the commutative property of addition.
multiply the first equation by 3 and multiply the second equation by -2.
this is justified by the multiplication property of equality.
multiply the first equation by 4 and multiply the second equation by -5.
this is justified by the multiplication property of equality

Multiply the first equation by 3 and multiply the second equation by -2.

This is justified by the multiplication property of equality

Step-by-step explanation:

we have

----> first equation

----> second equation

step 1

Multiple the first equation by 3 both sides

-----> by multiplication property of equality

----> new first equation

step 2

Multiple the second equation by -2 both sides

 -----> by multiplication property of equality

----> new second equation

step 3

Solve the system of equations by elimination

Adds new first equation and new second equation

Find the value of x

substitute the value of y in any equation and solve for x

The solution is the point

therefore

Multiply the first equation by 3 and multiply the second equation by -2.

This is justified by the multiplication property of equality

what is the original number? you forgot to add it.