Question

Solve each system of equations by substitution : y = –2x – 5

y = 3x + 20

Answer 1

u need to get the value of x and y ?

Answer 2

yes, please

Answer 3

x=-5 and y=5

Answer 4

Solve each system of equations by substitution.

y = 2x – 11

y = –3x + 14

Answer 5

3x + 20 +2x+5 = 0
5x = -25
x = -5
y = 3*(-5) +20 = 5

Answer 6

x = 5 , y = -1

Answer 7

from the first equation , substistute for y in the second.
3x+20
-2x-5
3x + 20 +2x+5 = 0
5x = -25
x = -5
y = 3*(-5) +20 = 5

Answer 8

2 moar?

Answer 9

oki

Answer 10

its diff tho. 1 sec

Answer 11

Simplify the rational expression:
(x^2+4x-5)/(x^2-4x+3)

Answer 12

factorise both the numerator and denominator...and cancel out the common factors....
u get
(x+5)/(x-3)

Answer 13

u sure the denominator u wrote is right ?

Answer 14

oh nm

Answer 15

1 mor

Answer 16

Simplify the rational expression:
(m+2)/(m^2-3m-10)

Answer 17

1/(m-5)