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Fofino [41]
4 years ago
15

1.

Mathematics
1 answer:
lakkis [162]4 years ago
3 0
Question 1:

<span> 5x + 10 = 5x –8 

5x - 5x + 10 = -8

10 </span>≠ -8

Hence, the answer is A.

Question 2:

<span>2(4y –1) = 6

8y - 2 = 6

8y = 6 + 2

8y = 8

y = </span>\frac{8}{8}<span>

y = 1

Hence, the answer is B.

Question 3:

</span><span>6x + 10 –4x = –4 –11

2x = -15 -10

2x = -25

x = </span>\frac{-25}{2}

x = -12.5

Hence, the answer is B.

Question 4:

<span>2(2x –5 –4) = 160 –17

4x -10 -8 = 143

4x -18 = 143

4x = 143 + 18

4x = 161

x = </span>\frac{161}{4}

x = 40.25

Hence, the answer is A.

Question 5:

<span>2(3x –7) + 18 = 10

6x - 14 + 18 = 10

6x + 4 = 10

6x = 10 -4 

6x = 6

x = </span>\frac{6}{6}

x = 1

Hence, the answer is A.
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