22-09-2015
Mathematics

contestada

6r+7=13+7r help plz linear equations

Respuesta :

WorldCitizen WorldCitizen

04-10-2015

Well, let's put all the "r"s on one side, alone:

6r-7r=13-7 //you can put the expressions on the other side of the equation if you change the sign

now we add up:

-r=6

now we multiply both sides by (-1):

r=-6

which is the solution!

Answer Link

Otras preguntas

Parking spaces in a parking lot are parallel to each other. Find the measure of the two unknown angles and explain your reasoning. measure of angle m: measure o

How does the air in Earth’s atmosphere differ from a gas in a closed system?

In the setup of a cart pulled by a hanging mass, without friction, we have the following information: the mass of the cart is 0.53 Kg., and the hanging mass is

what is the amount of taxes paid for 2014 for $65,000 of taxable income for a single person? (rounded to the nearest dollar and no dollar sign $ or comma needed

can someone help please? take ur time btw :D

sheila is writing a persuasive message to potential customers and opens with this sentence you can reduce your monthly energy bill by 30 percent or more. she is

Debra earns $12.45 per hour and worked 26 34 hours last week. What is her gross pay?

Identify the trends in the graph and then use the drop- down menu to complete each statement. From 1961 to 1965, unemployment was In the mid-2000s through 2011

If f(1)=4 f(2)=5 and f(n)=f(n-1) + f(n-2) then find the value of f(5)

4. WATER Mr. Williams pays $40 a month for city water, no matter how many gallons of water he uses in a given month. Let x represent the number of gallons of wa