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3 years ago

Solve the equation 3(x-7)-x=2x-21

2 answers:

Klio2033 [76]3 years ago

4 0

3(x - 7) - x = 2x - 21
Distribute the the 3: 3x - 7 -x = 2x - 21
Add like terms: 4x - 7 = 2x - 21
Subtract 2x on both sides: 2x - 7 = -21
Add -7 to both sides: 2x = -28

x = -14

vekshin13 years ago

3 0

First, distribute
3(x-7)=3x-21

3x-21-x=2x-21
3x-1x-21=2x-21
add like terms
2x-21=2x-21
minus 2x oth sides
-21=-21
true

we see that the x's wil cancel

therfor x=all real numbers

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3 years ago

If r = 9, b = 5, and g= −6, what does (r + b − g)(b + g) equal?

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Step-by-step explanation:

(r + b − g)(b + g)

we have fom statement:

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lora16 [44]

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jenyasd209 [6]

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