hahntimmy hahntimmy

11-10-2016
Mathematics

contestada

solve the system of equations 3x+2y=14 2x-4y=4

Respuesta :

texaschic101 texaschic101

11-10-2016

3x + 2y = 14....multiply by 2
2x - 4y = 4
----------------
6x + 4y = 28 (result of multiplying by 2)
2x - 4y = 4
----------------add
8x = 32
x = 32/8
x = 4

2x - 4y = 4
2(4) - 4y = 4
8 - 4y = 4
-4y = 4 - 8
-4y = -4
y = -4/-4
y = 1

solution is (4,1)

Answer Link

Otras preguntas

What was the US government’s response to the Supreme Court ruling in 1898 which stated that Asian children born in the U.S. were automatic citizens? (Site 1)

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! What is the sum of the first eight terms of the series? (−800)+(−200)+(−50)+(−12.5)+... Round the answer to tw

Unlike the native americans, mesopotamians had to trade for which of the following resources

PLEASE HELP 30 POINTS!!

Why did the Patriot Act raise civil rights questions? It redefined what constitutes terrorism. It allowed more widespread government searches of private

mia is 6973920 minutes old. convert her age to years days and months assuming that a year has 365 days and a month has 30 days

During his second term which problem did George W. Bush attempt to address by calling for the privatization of Social Security

PLEASE HELPPP!!!!!!!!!!!!!!!!!!!!!Mr. Elliot needs to drain his above ground pool before the winter. The graph below represents the relationship between the num

Based on the information given say whether or not △ABC∼△FED. Explain your reasoning. m∠A=70°, m∠B=x, m∠C=x+2°, m∠D=y, m∠E=y+5°, and m∠F=y+25°.

27 (x2+8x+16) / 3 (x2+6x+8) simplify