betseydemarcus betseydemarcus
  • 14-04-2020
  • Mathematics
contestada

Solve using substitution.
x-y=4
3x-2y=-5

Respuesta :

rafailpopa rafailpopa
  • 14-04-2020

Answer:

x-y=4 => x=4+y

replace that in 2nd equation

3(4+y) -2y = - 5

12+3y-2y= -5

y = -17

x = 4+(-17) =  -13

Step-by-step explanation:

Answer Link

Otras preguntas

twelve is sixteen less than four times a number
How to solve this problem .         0.3 [1.57 – (0.6)²]
Evaluate the expression (11/7)(5/3)(3/1)
Evaluate the expression (11/7)(5/3)(3/1)
Carmen listed the multiples of 6 as 1,2,3, and 6. Is she correct? Explain why or why not.
Use the following words to write your own poem for your school'S POENTRY COMPETITION--bed-red-head-said-fed--see-bee-free-tea-agree--ship-lip-slip-equip-skip--e
one-sixth of a number is 66
How many squares for three traits?
An author is having a book signing at a store. He agrees to give 5% of his profit to literacy programs and 15% of his profit to his manager. If he makes a profi
A retired couple invested $6000 in bonds. At the end of one year, they received an interest payment of $396. What was the simple interest rate of the bonds?