noah1781 noah1781

02-12-2018
Mathematics

contestada

Solve by substitution 3x+y=5 and 2x-y=10

Respuesta :

charper317 charper317

02-12-2018

3x+5=2x-10
-2x -2x
X+5=-10
-5 -5
X=-15

3(-15)+y=5
-45+y=5
+45 +45
y=50

2(-15)-y=10
-30-y=10
+30 +30
-y=40
Divide by -1 on both sides
y=-40

Answer Link

Otras preguntas

What is the equation for a circle centered at the origin (0,0)? a) r sqt = x sqt + y sqt b) r sqt =(/x+y) sqt c) r= /x+y d) r=x+y

With a two dimensional surface, if we take (2, 1) as the center point and considera transformation with a rotation angle of 45◦, then point (3, 3) is transforme

HELP ILL GIVE BRAINLIEST

This is Solving Linear Equations.

Find all complex solutions of 2x^2+x+6=0. (If there is more than one solution, separate them with commas.)

Evaluate ab+bc+ca . If a²+b²+c²=50 and a+b+c=12

Select the item that uses correct grammar, punctuation, and connecting words. Students overlooking the errors they have made, and cause them to receive lower gr

Find the slope of the line that contains (4, -6) and (4, 4)

two gubernatorial aspirants amp in two different states in Nigeria have probabilities of 2/9 and 4/11 respectively of winning and impending election find the pr

Activity Convert these mililitres to litres. a. 1436 ml