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solong [7]
3 years ago
15

The work of a student to solve the equation 2(3x − 4) = 8 + 2x + 4 is shown below:

Mathematics
1 answer:
Lorico [155]3 years ago
8 0

Answer:

step 2; 6x-8=12+2x; she added instead of multiplying

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Question 1
enyata [817]

Answer:

x = 1/8

Step-by-step explanation:

Solve for x by simplifying both sides of the equation, then isolating the variable.

8 0
2 years ago
Given a≠±b and a^2−b^2 / a+b =12, find a−b.<br> pls hlep
Readme [11.4K]

Answer:

a - b = 12

Step-by-step explanation:

Given

\frac{a^2-b^2}{a+b} = 12 ← factor the numerator

a² - b² ← is a difference of squares and factors as

a² - b² = (a - b)(a + b)

Thus

\frac{(a-b)(a+b)}{a+b} = 12

Cancel the common factor (a + b) on numerator/ denominator, thus

a - b = 12

7 0
3 years ago
10 cm
kirza4 [7]
Um can we see the cylinder
7 0
3 years ago
What is the value of the expression?<br> 3⋅[(30−8)÷2+2]
dusya [7]

Answer: 39

Step-by-step explanation:

30-8=22

22/2=11

11+2=13

13 times three is (39)

3 0
3 years ago
Is this HL, SSS, NOT CONGRUENT OR SAS
Sunny_sXe [5.5K]
Not congruent because we only have a side and angle or hypotenuse and angle. Not enough info
7 0
2 years ago
Read 2 more answers
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