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

The deltoid muscle can effectively contract through its entire ROM because of the upward rotation of the scapula, which serves to maintain tension in the deltoi

The decision to let someone die, Rachels argues, is a type of action that is subject to moral appraisal. True False

If the 4th and 7th terms of a G.P are −1/2 and − 4, respectively, then find G5 and S6 .

What is the slope of the following line: y=3x−7

Alternative energy sources of wind power and solar thermal power don't burn fossil fuels, but both affect _______ populations.

particular substance dissolve in a particular ..................

Mrs. Storz can ride her bike 6000 meters in 15 minutes. How far can she ride in 2 minutes?

discuss the advantage of genetic engineering and biotechnology

Let f(x) be a continuous function such that f(1)=2 and f(x)= x^3+6 and What is the value of f(5)?(A) 11.446 (B) 13.446 (C) 15.446 (D) 24.672 (E) 26.672 fx x f5

A small object carrying a charge of -4.00 nC is acted upon by a downward force of 24.0 nN when placed at a certain point in an electric field. What are the magn