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Alexus [3.1K]
3 years ago
11

1.

Mathematics
2 answers:
PolarNik [594]3 years ago
8 0
Question 1:

<span>5z – 9 = 36

5z = 45

z = </span>\frac{45}{5}

z = 9

Hence, the answer is D.

Question 2:

<span>5(2z + 4) = 0
</span><span>
10z + 20 = 0

10z = -20

z = </span>\frac{-20}{10}
<span>
z = -2

Hence, the answer is A.

Question 3:

4a + 3(a + 1) = 24

4a + 3a + 3 = 24

7a = 21

a = </span>\frac{21}{7}

a = 3

Hence, the answer is B.

Question 4:

<span>3(4x + 5) = 12

12x + 15 = 12

12x = 12 - 15

12x = -3

x = </span>\frac{-3}{12} = - \frac{1}{4}

Hence, the answer is A.

Question 5:

<span>4x – 8 – 4x = 9

-8 </span>≠ 9

Hence, the answer is A.
marshall27 [118]3 years ago
5 0
Ugh oh..sorry..First time user.. answer one 9. Answer three. 3
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