Saturday

October 25, 2014

October 25, 2014

Posted by **Az** on Sunday, November 6, 2011 at 2:31pm.

a(3x+1)+b(5x-1)=11x+9 for all x€r

- algebra -
**Steve**, Monday, November 7, 2011 at 4:45amyou have

3ax + a + 5bx - b = 11x + 9

If these expressions are identical for all x, then like powers of x must be equal:

3a + 5b = 11

a - b = 9

so,

3(b+9) + 5b = 11

b = -2

a = 7

**Answer this Question**

**Related Questions**

college algebra - use the rational zeros theorem to find all the real zeros of ...

Algebra 2 Could use help asap - I really am trying to work these problems out ...

Algebra - 57. Find the domain of: y= 5 _____ 2x+24 a. all real numbers except 12...

algebra - Find the domain and range of the function. 1. f(x)= x^2-x I got: ...

Algebra 1-- Please, check my answers! - 1. What is ((-12x^6 + x)) / ((-4x^2))? ...

Algebra 2 - If f(x)=3^2 g(x)= 1/6+x find the following and give the domain (f+g...

Algebra - The vertex of a parabola is at (-2,4), and the x-intercepts are at -6 ...

Algebra :P... again - Hi! Sorry.. but 1 more question? Direction: Find the ...

sorry left out a "x" - If f(x)=3^2 g(x)= 1/6+x find the following and give the ...

Algebra-Please help - Where do I look for the domain in this- The domain of y =...