tshamya05 tshamya05

24-04-2020
Mathematics

contestada

X-4y=7 -6x-3y=12 how do i solve by substitution

Respuesta :

Anisatunizzati Anisatunizzati

26-04-2020

Answer:

x = 15

y = 2

Step-by-step explanation:

X-4y=7 | ×6 |

-6x-3y=12 | ×1 |

6x - 24y = 42

-6x - 3y = 12

___________+

27y = 54

y = 54/27

y = 2

x - 4y = 7

x - 4(2) = 7

x - 8 = 7

x = 7 + 8

x = 15

Answer Link

Otras preguntas

is 3:6 and 6:3 eqivalent

What right did Roman woman have?HURRY

pls what are the roles of the nigerian economy

Corey brought $54.50 to the art supply store. He bought a brush, a sketchbook, and a paint set. The brush was 1 6 as much as the sketchbook, and the sketchbook

What is the equation of the circle with a radius of 5 and center of (2, 3)? A (x + 2)2 + (y + 3) = 25 B (x + 2)2 + (y + 3)2 = 5 OA OB.

What process is used to convert numbers between the binary system and the decimal system? ANSWER: D) Look up the number on a binary-to-decimal conversion table

Identifying the Intensive Pronoun Which word from the passage is an intensive pronoun? The race was about to start. Katie stepped onto the track. The other runn

What equation that passes through a line (1, -1) and (3, 5).

Some species of hares are brown most of the year, but change color to white in the winter. This allows them to blend in through the seasons. PLEASE HURRY PLZ MY

Two equations are shown: Equation A y = −5x − 3 Equation B y = 4x + 5 Which statement best compares the graphs of the two equations? Both are nonlinear. Both