adrisofiavarela adrisofiavarela

23-02-2021
Mathematics

contestada

Select the best possible first step to solving the system by first eliminating the x variable.

3x + 5y = 1
2x + 4y = −4

Respuesta :

faisal4craft7 faisal4craft7

23-02-2021

2x + 4y = -4

2x = -4 - 4y

x = -2-2y

(3x+5y=1) ----> (1)

3(-2-2y) + 5y = 1

-6 -6y + 5y = 1

-6 -y = 1

-y = 1 + 6

-y = 7

y = -7

2x + 4y = -4

2x + 4(-7) = -4

2x -28 = -4

2x = 24

x = 12

(x,y) = (12,-7)

Answer Link

Otras preguntas

In one sentence, explain what would happen to the market value of professional baseball players if fewer fans watched baseball games.

Which theory states that earth is the center of the universe?.

Which of the following proves these triangles are congruent? A AAS B. ASA C. Neither, they are not congruent

solve this equation: a+1/10=5/10

wheat growing in the fields Winter Wheat Production Durum Wheat Production Down 3% from June forecast Up 47% from 2006 Up 8% from 2006 Up 3% from June Other Spr

Line AB passes through (-3,5) and (p, -7), and line CD passes through (3,-1) and (-4,5). For what value of p, the lines AB and CD are parallel to each other? Pl

Change 등 5 8 to a decimal.

Determine whether the triangle with sides 9 cm, 15 cm, 12 cm is right angle triangle

6a^3b-1 . 2a^4b^2 I need help with my math

answer the questions below pls