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3 years ago

-6x + 18 = 7- (4x + 9) help will give brainlyist

Mathematics

2 answers:

andreyandreev [35.5K]3 years ago

6 0

Answer:

X = -5

Step-by-step explanation:

-6x + 18 = 7 - (4x + 9)

first we simplify the parentheses.

distribute the invisible number one created by the negative sign in front of the parentheses to get -6x + 18 = 7 - 4x - 9

then simplify further by subtracting 9 from the right side, leaving you with

-6x + 18 = -2 - 4x

next, add 2 to both sides to isolate the variable.

-6x + 20 = -4x

then, to isolate the variable further add 6x to both sides.

20 = -4x

divide both sides by -4 to isolate the variable

-5 = x

so, x = -5

tamaranim1 [39]3 years ago

4 0

Answer:

-5

Step-by-step explanation:

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3 years ago

O.9c + 1.89r = 17.01 c=18.9 - 2.1r equation answer

ikadub [295]

Answer:

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Step-by-step explanation:

<u><em>The complete question is</em></u>

A chef bought $17.01 worth of ribs and chicken. Ribs cost 1.89 per pound and chicken costs 0.90 per pound. The equation 0.90 +1.89r = 17.01 represents the relationship between the quantities in this situation.

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Then, explain when it might be helpful to write the equation in these forms.

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we have that

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$0.90c+1.89r=17.01$

where

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step 1

Solve the equation for c

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step 2

Solve the equation for r

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