mikaylafeist mikaylafeist

01-12-2016
Mathematics

contestada

Which ordered pair is the solution to the system?
x+5y=−3
2x+7y=3

A.(12, −3)
B.(−13, 2)
C.(−2, 1)
D.(22, −5)

Respuesta :

wizard123 wizard123

01-12-2016

For this one you want to cancel out the x-terms.
Multiply top equation by -2

---> -2x -10y = 6
---> 2x +7y = 3

Add them together

---> -3y = 9

Solve for y ...

Answer Link

Otras preguntas

If an atom is neutral then the number of electrons is equal to the number of

According to the ____________ view of personality, the story we tell about ourselves shapes who we are

Help on patterns I am very confused the geometric arithmetic and or neither

Need to know this asap please!!!

What if the Germans had been first to use the tanks

Rearrange the formula I = P R for R. A) R = P I2 B) R = ( P I ) C) R = P2 I D) R = ( P I )2

Who became governor of massachusetts under the coercive acts? a. paul revere b. thomas gage c. thomas jefferson d. patrick henry user: who made up most of t

HELP PLEASE... How many complex roots does 2xˆ4+3xˆ3-xˆ2+5=0 have? 3 5 2 4

Can you help me ?please!!!!!

The four capacitors shown in the diagram are neither all in series nor all in parallel. you can, however, identify portions of the arrangement that are either i