LINEAR EQUATIONS LUCY

vocabulary

100

What is LHS of 2x=x+3

2x

200

What is the RHS of 2x+3=4x+5

4x+5

300

What is the LHS of 5x=2

5x

400

What is the RHS of 2x=-3x+1

-3x+1

500

What is the RHS of 3=1-4x?

1-4x

solutions

100

Is x=1 a solution of 2x=2?

Yes, because 2*(1)=2

200

Is x=-1 a solution of 3x=3?

No, because 3(-1)≠ 3

300

Is x=2 a solution of 2x+1=5?

yes, because 2(2)+1=5

400

Is x=2 a solution of (x/2)+ 1 = 2

Yes, because (2/2)+1 =2

500

Is x=3 a solution of 5-3x= 4

No, because 5-3(3)≠4

Isolate the variable

100

2x=2

X=2/2

x=1

200

2x=-4

X=-4/2

x=-2

300

X/2=2

X=2*2

x=4

400

x/3=-2

x=(-2)*3

x=-6

500

-3x/2=3

x=3*2/(-3)

x=6/(-3)

x=-2

linear equations

100

Is 2x=1 a linear equation?

Yes, because the degree 1

200

Is 2x²=4 a linear equation?

No, because the degree is 2

300

Is 1/x = 5 a linear equation?

No, because the x is in the denominator

400

Is x/3=2 a linear equation?

Yes, because the degree is 1

500

Is 2x +3x = 4x -1 a linear equation?

Yes, because its degree is 1 

TT

100

x-3=1

x=1+3

200

x-3=4

X=4+3

300

x+5=2

x=2-5

400

x-4=1

x=1+4

500

2x-1=x

2x-x=1