Answer:
Step-by-step explanation:
Equations
7x + 3y = 4z
<em>Second equation</em>
x + y = z Multiply the entire equation by 4
4[x + y = z] Now distribute the 4 through the equation
4x + 4y = 4z Both equations = 4z. Equate the lefts.
<em>Third equation </em>
7x+3y = 4x + 4y Subtract 3y from both sides
7x + 3y -3y = 4x + 4y -3y
7x = y + 4x Subtract 4x from both sides
7x - 4x = y + 4x - 4x Combine
3x = y
Answer: 3x = y
Answer:
Thanks you
Step-by-step explanation:
1. The answer is B (4, -1)
2. The answer is B (-2, 5)
The answer is: 12x5+x3+9x2+4
This is the correct answer because all of the exponents are in the correct calculation and the numbers as well.
I hoped this helped! :)
