gusbus12346 gusbus12346

15-12-2020
Mathematics

contestada

Use elimination to solve each system of equations. 1. x + y = 4 x – y = 7

Respuesta :

16-12-2020

Answer:

Step-by-step explanation:

1(x+y=4)

-1(x-y=7)

x+y=4

-x+y=-7

x-x=4-x

-x=x=-7+x

4-x=-7+x

4-x-x=-7

4-2x=-7

-2x=-7-4

-2x/-2=-11/-2

x=5.5

Answer Link

Otras preguntas

In what region is Islam strongest? A. Middle East and northern Africa B. Eastern Europe C. Asia and the Middle East D. Throughout Africa Mahayana Buddhism Vajra

203 devided by 29 what is the answer!!!!

Does the entropy of a system change when: a) a solid melts b) a gas liquefies c) a solid sublimes

one of the categories of products for which brand extension is especially logical is generic goods. generic services. commodities. complementary goods. licensed

which positive real number $x$ has the property that $x$, $\lfloor x \rfloor$, and $x - \lfloor x\rfloor$ form a geometric progression (in that order)? (recall

Определи, какое количество теплоты выделится при кристаллизации 0,2 л жидкого спирта. Удельная теплота КГ кристаллизации жидкого спирта равна 1,1-10" Дж/кг, пло

Escriban los verbso en el preterito

the budget director of heather’s florist has prepared the following sales budget. the company had $50,000 in accounts receivable on july 1. heather’s florist no

When finding the margin of error for the mean of a normally distributed population from a sample, what is the critical probability, assuming a confidence level

- a Ob Od Oe 68. A piece of equipment has a nameplate rating of 22.7 KW at 250 volts. How much current will the equipment draw when connected to a 208-volt circ