3x-7=5x+11 - SoftMath Algebrator - Algebra Homework Solver (689076614429)

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3X(4-1) +2 = 11

Let x be the number you are thinking of.
3x-11=x+33
3x-x=33+11
2x=44
x=44/2=22
Check
3*22-11=? 22+33
66-11=55=?55 Yes. It checks OK.

The following solution shows how to find the value of x:

Start with the general equation given:
y = -(3/5)x - 8

Substitute the known value of y:
-11 = -(3/5)x - 8

Add 8 to both sides:
-11 + 8 = -(3/5)x - 8 + 8
-3 = -(3/5)x

Now multiply both sides by 5 to get rid of the denominator:
-3 * 5 = -(3/5)x * 5
-15 = -3x

Now divide by -3 to get x:
-15/3 = -3x/3
x = 5

The answer is x = 5.

daughter = x
mother = x+28

Equation = x+28=3x

Solve:

x+28=3x
-x -x
28 = 2x
/2 /2
x=14

Answer:
Daughter = 14
Mother = 42

Jamie = x
Luiz = x+4
Ramon = x+7

3x+11=29

3x=18

x=6

Jamie = 6 , Luiz = 6+4 = 10 , Ramon = 6+3 = 13

X=-.6 rounded off

x^2=-3x+28 x^2+3x - 28 = 0 D=9+112=121>0 x1=(-3+11)/2 = 4 x2=(-3-11)/2 = -7

I use one of the graphing APPS or do through a program. I have a users manual for TI 84 silver Edition that shows you how to archive\ unarchive to run programs here at this site. Usually, I tell people to just forget about the programs and use the simple concepts so, that they could operate their calculator better. But, if you notice in those program are actually more powerful than the programs you get on the web, because I wrote them to be flawless, or I only used programs that I knew would not clash and were very well written. Won't y1=(2/5)x-(11/5) and -3x+8 work?

y1=(2/5)x-(11/5) and -3x+8

7x-3 + 3x = -53
7x + 3x - 3 = -53
10x - 3 = -53
10x = -53 + 3
10x = -50
x = -5
Therefore 4x + 9 is equal to 4 times (-5) plus 9
-20 + 9 equals -11