kalumlankaotlqfl kalumlankaotlqfl

01-08-2017
Mathematics

contestada

If (3)x+y = 81 and (81)x-y = 3 find the values of x and y.

Respuesta :

ivana04 ivana04

11-09-2017

you have to isolate the variables meaning you have to do the opposite of multiply 81 you have to divide 3/81: x and y for both sides will be the same thing

Answer Link

Otras preguntas

what is the slope of a line that is perpendicular to the line 2y – 3x = 8?

may someone help me on this please

what year did christopher columbus sail the ocean blue?

you have been asked to recommend a alternative source of energy that your town could use to generate electricity. describe the renewable resource that you belie

when 40.0 ml of 1.00 m h2so4 is added to 80.0 ml of 1.00 m naoh at 20.00°c in a coffee cup calorimeter, the temperature of the aqueous solution increases to 29.

round 0.97 to the nearest tenth

Time (weeks) Lake Depth (feet) 0 346.0 2 344.8 5 343.0 7 341.8 10 340.0 12 338.8 An environmental agency studying the effects of drought on a lake found th

Find the sum and express it in simplest form. (-y + 5a - 4) + (-3y - a - 5)

what figurative language is " thank heaven! the crisis— the danger is past, and the lingering illness is over at last— and the fever called "living" is conquere

Which of the following nations was the LAST to establish an elected legislature?