2 years ago

4x=3y+23 4y+3x=-19 solve by substitution. No files pls

Mathematics

1 answer:

LuckyWell [14K]2 years ago

3 0

Answer:

x = ⁷/₅

y = ⁻²⁹/₅

Step-by-step explanation:

4x = 3y + 23 (×3)

12x = 9y + 69

4y + 3x = -19

3x = -4y - 19 (×4)

12x = -16y - 76

∴ 9y + 69 = -16y - 76

25y = -145

y = ⁻²⁹/₅

12x = 9(⁻²⁹/₅) + 69

12x = 69 - ²⁶¹/₅

12x = ⁸⁴/₅

x = ⁷/₅

You might be interested in

The longest side of a triangle is 34 degree the measures of the triangle are 40 and 65. Find the lengths of the other two sides

Free_Kalibri [48]

105 is your answers bc you need to add 65 and 40

5 0

2 years ago

Read 2 more answers

I need help figuring with equation has one solution, infinite solution, and no solution

VashaNatasha [74]

Answer:

x2+5x+6=0

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

A + b = c

ipn [44]

Answer:

a=9

b=9

c=18

Step-by-step explanation:

c(a+b)+a+b=36

2a+2b=36

a+b=18

c=18

4 0

1 year ago

Chris and Josh have a total of 1,800 stamps in their collections, Josh and Jessica have a total of 2,200 stamps, and Jessica and

LiRa [457]

Answer: 3000 stamps

Step-by-step explanation:

Given

Chris and Josh have 1800 stamps

Josh and Jessica have 2200 stamps

Jessica and Chris have 2000 stamps

Suppose Chris, Josh, and Jessica have $x,y, \text{and}\ z$ stamps

$\therefore x+y=1800\quad \ldots(i)\\\Rightarrow y+z=2200\quad \ldots(ii)\\\Rightarrow z+x=2000\quad \ldots(iii)\\\text{Add (i), (ii), and (iii)}\\\Rightarrow 2(x+y+z)=1800+2200+2000\\\Rightarrow x+y+z=3000$

Thus, all three have 3000 stamps

6 0

2 years ago

WILL MARK YOU IF YOU HELP ME !!!!

coldgirl [10]

Answer:

Perpendicular bisector

7 0

3 years ago

Read 2 more answers