ultratron50 ultratron50

17-12-2018
Mathematics

contestada

x=2y+7
x=y+4
with substitution

Respuesta :

27-12-2018

x = 2y + 7 (*)

x = y + 4 (**)

Substitute (*) to (**):

2y + 7 = y + 4 subtract 7 from both sides

2y = y - 3 subtract y from both sides

y = -3

Put the value of y to the second equation:

x = -3 + 4

x = 1

Answer: x = 1 and y = -3 → (1, 3)

Answer Link

Otras preguntas

Please in 4 sentences discuss what you learned about the three frontiers?

A surveyor sights the far bank of a river at an angle of 110° to the near bank. She then moves 75 feet upriver and sights the same point on the far bank of the

A Lidia le gustaría salir ________. –¿Por qué? –Le gustas tú. –Tú eres mi novia. Tú estás ________. No quiero salir con Lidia. contigo; conmigo contigo; con ell

When using the technique of direct characterization, authors often use _____ to describe cartchers

Minimize Q = 3x^2+ 4y^2, where x + y = 7.

In Java, a char variable is capable of storing any Unicode character. Write a statement that assigns the Greek letter ^ to a char variable named greekLetter

Other than carbon being relatively small, what is another reason that carbon can form so many compounds? the ability to form four covalent bonds the ability to

divide 15 root 20 by 6 root 125

Choose the name of this figure. A. line B. angle c. line segment D. ray

The combustion of methane is a reaction commonly used in chemistry problems due to its ability to fit into multiple topics. So it should not surprise you to see