19mjjenkins 19mjjenkins

04-09-2015
Mathematics

contestada

For what value of a is a(2x+3)=9x+15+x an identity?

Respuesta :

konrad509 konrad509

04-09-2015

[tex]a(2x+3)=9x+15+x\\ 2ax+3a=10x+15\\\\ 2a=10 \wedge 3a=15\\ a=5 \wedge a=5\\\\ \boxed{a=5} [/tex]

Answer Link

Otras preguntas

Below is the Excel output from a single factor ANOVA analysis. The data was collected to measure the effect of fertilizer amount on the pH of soil samples. Anov

.......................

Types of charts include which of the following? A. a Byrd chart B. a Gantt chart C. a Whipple chart D. Both 1 and 2 E. Both 2 and 3.

What does the skeletal part of the musculoskeletal system do? Why is 'protects the organs of the body' correct?

Exit A loaded truck carrying iron rods weighs 27.50 tons. If the weight of the iron rods is 20 tons, what is the weight of the unloaded truck? A. 5 T B. 5.5 T C

Liz walks 1/2 mile in 20 minutes on Monday and 3 3/4 in 150 minutes on Sunday is this proportional or non -proportional

Find the range of the data. 39, 73, 85, 8, 76, 5 range

Write a character sketch of Mrs Beck?pls help

When a solution reaches the equivalence point in a titration, which of the following is NOT true? A). [H+] is equal to [OH-] B). pH is close to 7 C). The volum

2+2+3+3+4+4+5+5+6+6+7+7+8+8+9+9+2+2