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Step2247 [10]
3 years ago
13

Which of the following statements describes a correct method for solving the equation below?

Mathematics
2 answers:
Andrei [34K]3 years ago
6 0
30 + 2w = 2 • (w - 15)

Equation at the end of step 1 :
Step 2 :
Equations which are never true :
Solve : 2 = 0

This equation has no solution.
A a non-zero constant never equals zero.

Solving a Single Variable Equation
Solve : w-15 = 0

Add 15 to both sides of the equation :
w = 15
TiliK225 [7]3 years ago
3 0

You are trying to solve for "w", to do so you:

20 + 2w = 50     Subtract 20 on both sides  

2w = 30  Divide 2 on both sides to get "w" by itself

w = 15


Your answer is B

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vovikov84 [41]

Answer:

x = (+ - ) 9

Step-by-step explanation:

x^2 = 81

u know how u can sometimes cancel something out by doing the opposite.

This is one of those times as well. the opposite of ^2 = square root.

so if we take the square root of both sides, this will cancel out the^2 on the left side.

sqrt (x^2) = sqrt(81)

x = (+-) 9.....thats a positive and a negative sign...because the sqrt of 81 is both 9 and -9.

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