angel031
angel031
25-03-2017
Mathematics
contestada
how would you solve this problem?
Respuesta :
bcalle
bcalle
25-03-2017
Subtract the two equations.
-y = -7
y = 7
Plug 7 back in to either equation and solve for x.
x + 3(7) = 18
x + 21 = 18
Subtract 21 from both sides
x = -3
(-3,7)
CHECK
-3 + 3(7) = 18
-3 + 4(7) = 25
Answer Link
VER TODAS LAS RESPUESTAS ( 25+ )
Otras preguntas
From 230 mg of N204, x molecules are removed, 5 x 104 mole of N204 is left, then x will be (1) 2 × 10-3 (3) 4 × 10-3 (2) 1.2 × 1021 (4) 2.4 × 1021
which is the greatest adversary of recorded detail?
Graph the line y=kx+1 given that the point M belongs to the line. M (1, 3)
To which branch of government Dora the power to interpret laws and apply the constution to the laws Belong?
Write the number five million four thousand three hundred in standard form.
What language device is this sentence "His feet silent on the carpeting" Is it Adjective/ adverb/ verbs.
true or false: Inventions, such as the cotton gin, had no negative impact on the United States or its people.
32^10-33x^5+1 find the real roots
To maintain a clean, tidy and sanitised work area and equipment, it is your responsibility to Select one: a. All of these b. Ensure food temperatures are correc
Gold nucleus radius R is represented by the symbol Au atomic number 79 and mass number 197 taking e as the elementary charge and E° as the permittivity of free
