math
posted by jaz .
solve the absolute value problem : 3x+4x+5=10

math 
Anonymous
In mathematics, the absolute value a of a real number a is the numerical value of a without regard to its sign.
So, for example, the absolute value of 3 is 3, and the absolute value of
3 is also 3.
In this case:
 4 x + 5  = 4 x + 5
OR
 4 x + 5  =  ( 4 x + 5 ) =  4 x  5
Equation:
3 x +  4 x + 5  = 10
has two solutions.
1.)
3 x + 4 x + 5 = 10
7 x = 10  5
7 x = 5 Divide both sides with 7
x = 5 / 7
2.)
3 x  ( 4 x + 5 ) = 10
3 x  4 x  5 = 10
 x = 10 + 5
 x = 15 Multiply both sides with  1
x =  15 
math 
Anonymous
 4 x + 5  = 4 x + 5
  ( 4 x + 5 )  =   4 x  5  =  4 x + 5  
math 
Reiny
More direct way:
3x+4x+5=10
4x+5 = 103x
4x+5 = 103x OR 4x5 = 103x
7x = 5 OR x = 15
x = 5/7 OR x = 15
Respond to this Question
Similar Questions

Math
Can someone please help me with an algebra problem? 
math
i can figure this out 2+5+6 i try inverse but im still getting it wrong ive been stuck on this fo awhile There is no inverse in the equation. the ... means absolute value. We perform what is indicated in the ,, and that is … 
math, help
For the following set, which number has the largest absolute value? 
math
when in the absolute value of x equal to the absolute value of negative x? 
math !!!!!!please part of a major grade!!!!!!
when in the absolute value of x equal to the absolute value of negative x? 
college math
solve absolute value 2x20 absolute value=absolute value 9x+ ansolute value 15 2x20=9x+15 
SAT Math
Can I please get some help on these questions: 1. If , find the value of 2 square root of 17x = 2x10, find the value of x/4. 2. If absolute value of 3x+6 < 9, then which of the following is a possible value of x ? 
Math
1. Suppose a and b are integers, and the absolute value of a is > than the absolute value of b. Must a be greater than b? 
Algebra
Describe how you know if an inequality is an “and” or an “or” problem. (use 3 < x+5 < 8). Also, how do you know if an absolute value question is an “and” or an “or” problem? 
ALGEBRA
Describe how you know if an inequality is an “and” or an “or” problem. (use 3 < x+5 < 8). Also, how do you know if an absolute value question is an “and” or an “or” problem?