Answer:
7. Multiply 2,5and 4 by 7 to get these answers. That's how 7 is a common factor of these numbers.
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The answer would be 7z-17y+24
Explanation
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The problem is simplify 24-4(5y-6z)+3y-7z
We can focus on the smaller important parts first which would be to multiply -4(5y-6z). A common mistake is that people always forget to multiply with the negative sign.
We multiply -4(5y) + -4(-6z) ===> -20y + 24z
We now have...
24-20y+24z+3y-7z
We combine any like terms and we get...
17z-17y+24
<em>I hope this helps : )</em>
Substitute x = -4y into x+5y = 2.
-4y + 5y = 2
y = 2. Substitute this value into the first equation: x = -4 × 2 = -8.
So the answer is (-8,2).
