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# when you subtract a variable from a whole number and a variable:example x+23=2x+45 why does the 2x become 0?

I need to understand the rules of basic algebra. I understand the answer, I need to understand why it is the answer. x+23=2x+45       x-x+23=2x-x+45         23=x+45. why does the 2x become...

# -6r x (12s)

the "x" is a multiplication sign not a variable

# 3(-X-4)=2X +3(X-5)

3(-X-4)=2X +3(X-5)

# solve for a: a^3b/4=7/vc^2

Need to simplify this equation and solve for 'a'

# SOLVE X^2-10X+5=0

SOLVE X^2-10X+5=0

# Calculate the slope between (6,9) and (-3,9)

Would love it if absolute detail is giving on how to solve the question

# what is the answer to this eqaution with the work added?!?!6x-2=2x+18

i need to know this answer to the equation!

# rewrite in standard form 2x^2+4x-1

rewrite in standard form 2x^2+4x-1

# Graph the inequality?

How would you graph this and what would the plots be?  Thanks! x + 4y < 2

# Graphing inequalities?

What would be the graphing plots to?:  -4x-5y>-20 I know one side should be shaded but not sure if the line is solid or dotted.  Thank you!

# rewrite in standard form -2x^2+3x+7

rewrite in standard form -2x^2+3x+7

# what is 6 + 6 X 0 + 2

what is 6 + 6 X 0 + 2

# What is x+1/4=8/9

It's really important

# Find two numbers such that 6 times the first added to 5 times the second equals -9, and 5 times the first added to 8 times the second equals 4.

I'm not sure how to answer this problem so any help on how to solve this problem would be appreciated.  Thanks!

# Use addition or substitution to find the value of y for this set of equations. top line 2x - 3y = -15 bottom line x = 4y

Use addition or substitution to find the value of y for this set of equations. top line 2x - 3y = -15 bottom line x = 4y

# Find r if 0.106508=(1+(r/4))^4-1

I need to know the answer with the steps

# -(5x+2)+2(1+5x)

My problem is that when we have a - sign like hust above does it count to a 1 which is minus or what. I really dont understand.Please give the answer like right now. thankyou

# x^2-x+2x-2

x^2-x+2x-2 hellllllllllllllllllllllllllllllllllllllllllllllppppppppppp

# 1.2(x-2)=2-x need to find x

need hlp on how to solve question

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