ellakatzenbach ellakatzenbach

13-11-2020
Mathematics

contestada

PLLLLSSS HELLPP
Use the substitution method to solve the system of equations.
8x + 5y = 9
y = x + 7

Respuesta :

damien89 damien89

13-11-2020

Answer:

point form: (-2,5)

Step-by-step explanation:

8x + 5y = 9

y = x + 7

sub. y into the first one

8x + 5(x + 7) = 9

8x + 5x + 35 = 9

13x + 35 = 9

solve for x

13x = -26

x = -2

solve for y

y = x + 7

y = -2 + 7

y = 5

Answer Link

Otras preguntas

The graph of a linear equation contains the points (3,11) and (-2,1) Which point also lies on the graph

which type of economic system relies primarily on hunting gathering herding and farming to maintain self sufficiency

The theme of Sandburg's poem "Grass" is A. peace. B. war. C. forgetfulness. D. freedom.

The number of goals scored by a hockey team in each of its first 10 games is 2, 4, 0, 3,4, 1, 3, 1, 1, and 5. Find the mean number of goals scored

who was the wahhabist tribal leader who won control of the arabian peninsula and founded the kingdom of saudi arabia

A child riding a bicycle at 15 meters per second accelerates at −3.0 meters per second2 for 4.0 seconds. What is the child’s speed at the end of this 4.0-second

when was the confederate flag come in existence

The bitter confrontations between proslavery and antislavery factions earned the new Kansas territory the name ________. Kansas Hawks Free Soldiers Bleeding Kan

Which of the following powers of the national government is an inherent power? A. declare war B. make treaties with foreign countries C. grant patents and cop

another word for refuge is _____. a.haven b.miniature c.monarch d.bluff