SOLUTION: y=2x+3
5y-7x=18
Algebra.Com
Question 200207: y=2x+3
5y-7x=18
Answer by RAY100(1637) (Show Source): You can put this solution on YOUR website!
(1) y = 2x +3
.
(2) 5y -7x =18
.
subst (1) in (2)
.
5(2x+3) -7x = 18
.
10x +15 -7x = 18
.
3x =3
.
x=1
.
subst in (1),, y=2(1) +3 =5
.
check
(1) (5) = 2(1) +3 =5,,,,ok
(2) 5(5)-7(1) = 18,,,ok
RELATED QUESTIONS
solve using any method you choose
-2x+5y=-2
x-3y=3
7x+5y=18... (answered by Tobiasz,Alan3354)
7x-4y=-3... (answered by mananth)
(2x^6y^5)^3(-7x^5y^4) (answered by stanbon)
Solve each system.
1. 10x+6y=0
-7x+2y=31
2. 7x+5y=18
-7x-9y=4
(answered by Alan3354)
I need help for my activities!! Please.Thank youd
a. -18 - [-4 - (8)]
b. -{16x - (12 -... (answered by rothauserc)
7x+3y-4z=6,
2x-5y+6z=3,
x+y+2z=4 using cramer's rule (answered by jim_thompson5910)
2x+3=5y... (answered by checkley77)
2x+-y= 3
-2x+5y=... (answered by ewatrrr)
2x+y=3... (answered by fractalier)