1rakf 1rakf
  • 03-03-2017
  • Mathematics
contestada

Given the system of equations:

6x+y=9.7
4x+2y=9.8
What is the value of x?

Respuesta :

sara153 sara153
  • 03-03-2017
I used the substitution method.
The first equation is what I used: y=-6x+9.7
So I plugged in y in the second equation.
4x + 2(-6x+9.7)= 9.8
4x-12x+19.4=9.8
Combine like terms
-8x+19.4=9.8
Subtract 19.4 on both sides
-8x=-9.6
Divide by -8 on both sides and you get
x=1.2
If you wanted to find y use either equation and plug in for x with the value of x!
Answer Link

Otras preguntas

How to solve this equation-1/3m-7=5
Anybody know this answer ?
King George the third become king at 21 years old true or false
Which quadrilateral is a trapezoid? HELP QUICKLY PLEASE!!!!!!!
If one "abridges" a privilege, then one has ______ that privilege 1. Extended 2.connected 3. supported 4. denied
El niño está ________ (sleeping). A. durmiendo B. dormir C. duerme D. duermo
who's this president?
is college worth attending?
What is the total amount in an account that has had $45 per month added into it for 30 years and grew with an annual interest rate of 8%?
In order to analyze a poem, you should