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3 years ago

Help with the first section and second please. Also add explanation, or step by step. Thanks!

Mathematics

1 answer:

shepuryov [24]3 years ago

7 0

• 6x -2(x -5) = -2 . . . . given

• 6x -2x +10 = -2 . . . . X Cameron errored here. When multiplying -2 by -5, the result is 10, not -10.

• 4x +10 = -2 . . . . . . x terms are correctly collected

• 4x +10 -10 = -2 -10 . . . . add the opposite of the constant on the left

• 4x/4 = -12/4 . . . . divide by the x-coefficient

• x = -3 . . . . . . . . . . simplify

• 11x -10 = -34 . . . . combine like terms

• 11x -10 +10 = 34 +10 . . . . addition property of equality

• 11x = 44 . . . . . . . . simplify

• 11x/11 = 44/11 . . . division property of equality

• x = 4 . . . . . . . . . . . simplify

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3 years ago

What is the justification for step 2 in the solution process?

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Answer: OPTION B.

Step-by-step explanation:

Given the following equation:

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$7x -25= 4x - 1$

<em>Step 2</em>

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7 0

3 years ago

Read 2 more answers

Becca says that she can use elimination to solve the

xxTIMURxx [149]

yes i agree with her because elimination method is more simpler and shortest method to solve system of equations.

elimination method use to multiply of both equation in order to balance the variable x or y and then equate them.

example

x+2y=7 .....equation 1

x-3y=14 .......equation 2

so you can multiply equation 1 by -1 in order to equate x and get the value of y by saying equation 1 minus equation 2.

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4 years ago

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oof oof oof oof oof oof

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3 years ago