i1nizam1i i1nizam1i

03-12-2020
Mathematics

contestada

can you tell me how to solve this problem using substitution step by step?

y = -2x - 9 and 6x - 5y = - 19

Respuesta :

Аноним Аноним

03-12-2020

Answer:

x = -4

Step-by-step explanation:

The first equation tells us what y is equal to. We then substitute wherever there is a y with what y equals.

y = -2x - 9

6x - 5y = -19

6x - 5(-2x-9) = -19

6x + 10x + 45 = -19

16x + 45 = -19

16x = -64

x = -4

Answer Link

Otras preguntas

what we need to become success

what we need to become success

Choose the more precise measurement in the pair. A .) 6.7 mi or B.) 6 mi

round to the nearest hundredth 5.6192

What's the other term for: lacking respect; scornful

If X is the set of negative numbers and Y is the set of positive numbers, then the union of X and Y and 0 is the set of (A) all real numbers (B) all integers (C

write a system of equations and solvea class of 195 students went on a field trip. They took 7 vehicles,some cars and some buses. find the number of cars and nu

Which of the following steps is not critical in the creation of Bt corn?a.Cut out a piece of DNA from a DNA molecule.b.Splice a piece of DNA into DNA from anoth

What's the term for: unwilling to bend; unyielding

What was the major purpose of the Truman Doctrine?