milkmandlb milkmandlb
  • 23-02-2015
  • Mathematics
contestada

ii dont understand how to solve a system of linear equations using the substitution method

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 23-02-2015
so 8x-7y=-7
-16+12x=14
you can simplify the sceon equation
-8+6x=7
add 8 to both sides
6x=15
divide by 6
x=15/6
subssitute
8(15/6)-7y=-7
120/6-7y=-7
20-7y=-7
subtract 20
-7y=-27
divide by -7
y=27/7

x=15/6
y=27/7
Answer Link

Otras preguntas

What do you think Hughes is talking about when he mentions a “dream”? A real dream or something else? *
is (x+1)^2 equivalent to x^2 + 1? explain
Sam believes the rock is more denser than the pencil. He measured the mass of the rock to be 8.5 grams and volume to be 4.5mL. He measured the mass of the penci
I’ll really appreciate it if you could help me through this problem
Please Help, I need it for my homework
find the domain and range of the graph
please help thanks thanks thanks ty
Solve the question below
How to calculate the mean temperature formula​
June has $1.95 in dimes and nickels. She has a total of 28 coins. how many of each type of coin does she have?