Question

Solve the following system of equations.
2x + y = 3
x = 2y - 1

Answer 1

plug in x=2y-1 in the first equation, 2x +y=3
you get
2 (2y-1)+y=3
can you solve this equation which is only in 'y' and find y ?

Answer 2

y+5/6

Answer 3

how ?
4y-2+y=3
5y=3+2
5y=5
y=1
got this ?

Answer 4

i didnt distribute first i did something different ; how would i do this one Solve the following system of equations.

3x + 2y - 5 = 0

x = y + 10

Answer 5

put x=y+10 in 3x+2y-5=0
so,
3(y+10) +y -5=0
distribute first.

Answer 6

y=8.75

Answer 7

3y+30+y-5=0
4y+25=0
y = -25/4 = - 6.25
how u got 8.75 ?

Answer 8

i add 30+5 instead of subtracting

Answer 9

k, now clear ?

Answer 10

Solve the following system of equations by the substitution method.

10x + 10y = 1

x = y - 3

Answer 11

new question , new post plese ?