greenorb greenorb

25-01-2021
Mathematics

contestada

Solve the system of equations - x - 2y = 3 and 3x + 7y = -14 by combining the equations.

Respuesta :

sherrymadeline123 sherrymadeline123

25-01-2021

Answer:

x=7

y=-5

Step-by-step explanation:

multiply first equation by 3 and add the 2 equations together. plug y back into the equation

Answer Link

Otras preguntas

What is the third step of the formation cast of fossils

pls pls pls solve noA and B with correct answers by reading the text.

a) Un par de zapatos vale 48.000, fue rebajado en un 40% ¿Cual es el nuevo precio? b) Tenia 60 lápices, di a mí hermano el 40%, a mi primo el 30 y a un amigo el

A farmer, Sarah, has 54 hectares of hay to harvest. She hires a harvester at £1200 a day. If Sarah can harvest 12 ha per day, what will it cost her to harvest t

Rhonda is facing a complex situation and needs help figuring out what to do. Imagine that she hires you to help her tackle this challenge and make the right dec

A box of mass 3 kg is lifted 1.5 m onto a shelf. Calculate the change in its gravitational potential energy. The gravitational field strength is 10 N/kg. What’s

Find the domain of the expression. -x² + x³ + 8x Do they come out as real numbers?

The hardness of water is expressed as ppm of calcium carbonate (CaCO3). In a sample analysis of water from a spring, a hardness between 80 and 100ppm of CaCO3 w

Quiz Fit the puzzle pieces together to match each task to the mathematical skill that would be required to complete it. Reading a tape measure Planning the leng

what's the value of x in -3x < 18