Substitution

Which option correctly substituted the following Systems of Equations?

x = 7 - 2y

2x + y = 5

• 2x+(7-2y)=5

• 3x+y=12-2y

• 2(7-2y)+y=5

• 2x+y=7-2y

Which option correctly substituted the following Systems of Equations?

x - y = 6

y = 2x- 5

• x-y=2x-5

• (2x-5)-y=6

• x-(2x-5)=6

• x=6+2x-5

• 8x+1=6x+3

• y=6(3x+1)+3

• y=8(6x+3)+1

• 2y=14x+4

How many solutions will this system have?

• No Solution
• Infinitely Many Solutions
• No Clue
• One solution

How many solutions will this system have? 

• No solution
• One Solution
• I Don't Know
• Infinitely Many Solutions

• 4-x=3x-8

• y=3(4-x)-8

• y=4-(3x-8)

• 2y=2x-4

• -4x+4(-2x-10)=8

• -4(-2x-10)+4y=8

• -4x+4y=-2x-10

• y=-2(-4x+4y)-10

Which option correctly substituted the following Systems of Equations?

3x + 2y = 16

y = -7x + 19

• y=-7(3x+2y)+19

• 3x+2y=-7x+19

• 3(-7x+19)+2y=16

• 3x+2(-7x+19)=16

Which option correctly substituted the following Systems of Equations?

y = 2x + 1

y = 4x - 1

• 2x+1=4x-1

• 2y=6x

• y=2(4x-1)+1

• y=4(2x+1)-1

Which option correctly substituted the following Systems of Equations?

• 2(3y+1)+4y=12

• 2x+4(3y+1)=12

• 2x+4y=3y+1

• x=3(2x+4y)+1