cecilia345 cecilia345
  • 04-05-2021
  • Mathematics
contestada

solve y=x-2 and x+y=12 using substitution

Respuesta :

Аноним Аноним
  • 04-05-2021

Step-by-step explanation:

y=x-2....eqn1

x+y=12.....eqn2

now,

from eqn 1

y= x-2

again, putting value of y in eqn 2

  • x+y=12
  • x+x-2=12
  • 2x=12+2
  • x=14/2
  • x=7

in eqn 1

  • y=x-2
  • y=7-2
  • y=5

hope it helps..

Answer Link

Otras preguntas

Find the value of r so the line that passes through the pair of points has the given slope. (3, 5), (−3, r), m=34
find the value of k in the equation 5k+1=10.which answer is correct 'first or second?then why? ans(1) : 5k+1=10 5k=10-1 5k=9
$4500 5.5% for 4 1/2 years
what equation is equivalent to y=3(x 5)(x-2)
John needs to drain the water from a tank with a hose. The water drains at a consistent number of gallons per minute. After 12 minutes, there are 432 gallons re
Another term for a risky mortgage is a?
Solve the absolute value equation for x. |4 - 2x| + 6 = 18 Enter your answers in the blanks in order from least to greatest. x = first answer or second ans
For each function how do the domain, the range, and the intervals over which the function is positive or negative compare with those of f(x)= |x| h(x)=-2|x|
8 sin4(θ) = cos(4θ) − 4 cos(2θ) + 3 Verify, assume that all quantities are defined
The side lengths of two cubes are 2:3. Find their surface area ratio​