Algebra help, please and thanks?

1 ⤊

Algebra help, please and thanks?

10x + 2y = 7
y = -5x + 3
Solve this by addition or substitution
Does it end up inconsistent or dependent?

Thank you for your help.

2006-08-23 03:31:16 · 4 answers · asked by sistermoon 4 in Education & Reference ➔ Homework Help

4 answers

10x+2(-5x+3)=7
10x-10x+6=7
0+6=7
6=7, this equation is inconsistent,
u had to do it by substitution.

if u need help another time u can ask here, i'm good at math.

2006-08-23 03:41:57 · answer #1 · answered by me 2 · 1⤊ 0⤋

10x + 2y =7
y = -5x +3

10x +2(-5x+3) =7
10x + -10x +6 = 7
6 = 7

2006-08-23 10:36:18 · answer #2 · answered by ciza29 3 · 0⤊ 0⤋

10x+2(-5x+3) = 7
10x-10x+6=7
6=7 ???
Inconsistent.

2006-08-23 10:34:45 · answer #3 · answered by madxkatz 2 · 0⤊ 0⤋

5x + 3y = 10

2006-08-23 10:42:16 · answer #4 · answered by ? 5 · 0⤊ 0⤋