$7k+2m=kr+4m+3\qquad\text{subtract}\ 2m\ \text{from both sides}\\\\7k+2m-2m=kr+4m-2m+3\\\\7k=kr+2m+3\qquad\text{subtract}\ kr\ \text{from both sides}\\\\7k-kr=kr-kr+2m+3\\\\7k-kr=2m+3\qquad\text{distribute}\\\\k(7-r)=2m+3\qquad\text{divide both sides by}\ (7-r)\neq0\\\\k=\dfrac{2m+3}{7-r}$

6 0

3 years ago

3x³-9x²-28x this is algebra 1

Oduvanchick [21]

Answer:

my friend use aljerba tiger

Step-by-step explanation:

4 0

3 years ago

Solve for the solution set: x + 5 5

lara [203]

Answer: um x=55

Step-by-step explanation:

3 0

3 years ago