Solve by elimination
x-2y=12
5x+3y=-44

The solution is x = -4 and y = -8

Solution:

Given system of equations are:

x - 2y = 12 eqn 1

5x + 3y = -44 eqn 2

We have to solve the system of equations by elimination

Multiply eqn 1 by 3

3(x - 2y = 12)

3x - 6y = 36 eqn 4

Multiply eqn 2 by 2

2(5x + 3y = -44)

10x + 6y = -88 eqn 5

Add eqn 4 and eqn 5

3x - 6y = 36

10x + 6y = -88

( + )

10x + 3x - 6y + 6y = 36 - 88

13x = 36 - 88

13x = -52

Substitute x = -4 in eqn 1

-4 - 2y = 12

-2y = 12 + 4

-2y = 16

Thus the solution is x = -4 and y = -8

b

step-by-step explanation:

it have 5 sides and 5 identicle angle.the rest does not have the same property as b.

brainliest

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x