livi02
livi02
27-01-2018
Mathematics
contestada
Algebra 1. Please show work.
Respuesta :
evgeniylevi
evgeniylevi
27-01-2018
Try this:
Given:
[tex] \left \{ {{x-y=1} \ [1] \atop {x+y=3} \ [2]} \right. [/tex]
1) [1]+[2]: 2x=2 ⇒ x=2
2) [2]-[1]: 2y=1 ⇒ y=1.
3) answer: (2;1)
Answer Link
VER TODAS LAS RESPUESTAS ( 15+ )
Otras preguntas
A bug flying horizontally at 0.65 m/s collides and sticks to the end of a uniform stick hanging vertically. After the impact, the stick swings out to a maximum
whats 22.6766382729 to 3 decimal places
what is the formula of nitric acid in science
Carey solves the equation 4(2x-1)+5=3+2(x+1) by applying the distributive property on both sides of the equation. The result is 8x-4+5=3+2x+2. Carey then wants
Complete this number sentence so that it illustrates the identity property of multiplication. the question is 46= *blank* × *blank*
What’s the value of 9.8z when z=3.1
f(x)=3/x-1 , g(x)=2/x Find g • f(-5)
Dr. Abaee is developing a new intelligence test. She gives her test to a group of 100 participants and records their scores. Six months later, she retests the s
Just after her husband leaves for an extended military tour overseas, Jeanne finds that her vision is suddenly impaired and that she is nearly blind. However, e
1. mi abuela / ser / muy trabajadora y amable 2. tú / ir / al teatro / cuando vivías en Nueva York 3. ayer / haber / muchísimos pacientes en el consultorio 4. (
