Answer:
No solution
Step-by-step explanation:
2x -y =7
y= 2x +3
- Substitute the y value. <em>2x-(2x+3)=7 or 2x -2x-3=7 </em>
- Eliminate opposites <em>2x <u>-2x</u>-3=7 >>>> -3=7</em>
- Answer <em>-3= 7</em> ( false)
-13x-3y+z+5
the negative makes 3y negative and z positive
Answer: 630
Step-by-step explanation:
Accepts: 4/9
x times 4/9 = 280
x = 630