jdolan8 jdolan8

02-03-2020
Mathematics

contestada

Solve the system below algebraically:
4x-y=20
-2x-2y=10

Respuesta :

pezgrl78 pezgrl78

02-03-2020

X= 3
Y= -8

Solve the 1st equation for y.
With your new Y value, plug it into the 2nd equation (for y).

Take a look at pic.

Answer Link

Otras preguntas

what does monarchy mean and how can you put it into a sentence

Which compounds are classified as Arrhenius acids? (1) HCl and NaOH (2) HNO3 and NaCl (3) NH3 and H2CO3 (4) HBr and H2SO4

In an oxidation-reduction reaction, the number of electrons lost is (1) equal to the number of electrons gained (2) equal to the number of protons gained (3) le

True or False? It's not possible to build a triangle with side lengths of 3, 3, and 3.

When do we celebrate Independence Day?

What is the gram-formula mass of Fe(NO3)3? (1) 146 g/mol (3) 214 g/mol (2) 194 g/mol (4) 242 g/mol

Given the balanced equation representing a reaction: Al2(SO4)3 +6NaOH ==> 2Al(OH)3 + 3Na2SO4 The mole ratio of NaOH to Al(OH)3 is (1) 1:1 (2) 3:1 (3) 1:3 (

Name one branch or part of the government.

Compared to the physical and chemical properties of the compound NO2 the compound N2O has (1) different physical properties and different chemical properties (2

Which change results in the formation of different substances? (1) burning of propane (2) melting of NaCl (s) (3) deposition of CO2(g) (4) solidification of wat