AutumnMH AutumnMH

08-02-2018
Mathematics

contestada

Find the solution of this system of equations. Separate the x- and y-values with a comma. x = -12 + y and -21x + 12y = -9

Respuesta :

Аноним Аноним

08-02-2018

x = -12 + y ---------- (1)
-21x + 12y = -9 ---- (2)

Sub (1) into (2)
-21(-12+y) + 12y = -9
252 - 21y + 12y = -9
-21y + 12y = -9 - 252
-9y = -261
y = 29 -- sub into (1)
x = -12 + 29
x = 17

Ans: x = 17, y= 29

Answer Link

Otras preguntas

What is the empirical formula of a compound which consists of 89.14% au and 10.80% o?

Please help me please

How can you check your final draft for a run on sentences? A) look for very long sentences that convey complex concepts B) Scan your essay to look for opportun

AB is a midsegment parallel XZ.The slope of XZ is 4. What is the slope of AN?

Which of the following was true of Jackson's political experience prior to the presidency? Select one: a. Jackson was vice president under John Quincy Adams. b.

What is - v + 12 v. Please answer asap

Indicate the formula for the following conditions. C(n,r)

One way a company can translate a low cost advantage

The highest unemployment rate reached by the US during the Great Depression was around ____. Question 5 options: 12% 50% 9% 25%

What is revealed through a characters response to hardships