Answer:
x = -3
Step-by-step explanation:
y = -x + 2
7x + 4y = -1
Subsitution method: (Substitute y)
7x + 4(-x+2) = -1
Expand.
7x + (-4x + 8) = -1
One plus and one minus make one minus. Two plus makes a plus.
7x -4x + 8 = -1
Simplify.
3x + 8 = -1
Isolate 3x.
3x = -1-8
= -9
Find x.
x = -9 ÷ 3
= -3
360 divided by x = 21.2 recurring
So rearrange that to get x = 360 divided by 21.2
Which rounds up to 17
Answer:
16
Step-by-step explanation:
-4(16+5)
5+16=20
20 sub -4 = 16
Answer and Step-by-step explanation:




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<em><u>Distributive property of multiplication :</u></em>



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<em><u>Now, that we know what it means let's apply it in our equation:</u></em>
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<em><u>Now, we simplify:</u></em>
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<em><u>Divide both sides by 2 in the equation:</u></em>
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<em><u>Simplify :</u></em>
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<em><u>Thus, the first correct step is option B,</u></em>
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