_•¥÷Equations'o•¥É
before we look into equations ,
lets
look into what an equation is first :
Equations have an equal sign ; our
goal is to solve for x
Expressions do not here to
have an equal sign ; our
goal is
simplify or facto rise,
depending on the instructions .
Equation : x -
2=5 Expression : x2 -
x
when with do the
working equations , we want to opposite
of what is
already there :
✗ < > ÷ + I
+ < > x + 2=3 x -
I = 2
2
☒ < > To x = 3- 2 X = 2 + I
0C =
I 0C =
3
D- ☒
✗ / ÷
20C = 3 I 5
=
2-
✗x =3
2 x
21 21 ✗ = 5×2
g-
312
=
x
b- I = 10
D-
, Examples :
I 21%+043+9=15 2 5 ( x -
2) = 7/2 -
x )
2×+8+9 =
15
50C 10 = 14 70C
-
-
20C + 177 = 15
53C -170C = 14 + 10
2x = 15 -
17
120C =
24
20C =
-2 x = 2
2 2
✗ = -
I
3 20C
4 3×39-3 LCD
2=12
3×5 59×2 : 6
3- +3×-2
=
3 × 2 -3×2
23C
= 12 -12
3( 3g -
3) + 3( 5) =
Zcsy)
3-
6 6 6
23C
= 14
3- 3) 315 ) ( Sy)
313g 2
-
+ =
20C
31 × 14 3
9g -9
= ✗ + 15
-31 toy
=
2x = 42
9g +6 =
toy
23C =
42 6
toy -9
=
y
2 2
6 =
Y ☐
✗ = 21
,
before we look into equations ,
lets
look into what an equation is first :
Equations have an equal sign ; our
goal is to solve for x
Expressions do not here to
have an equal sign ; our
goal is
simplify or facto rise,
depending on the instructions .
Equation : x -
2=5 Expression : x2 -
x
when with do the
working equations , we want to opposite
of what is
already there :
✗ < > ÷ + I
+ < > x + 2=3 x -
I = 2
2
☒ < > To x = 3- 2 X = 2 + I
0C =
I 0C =
3
D- ☒
✗ / ÷
20C = 3 I 5
=
2-
✗x =3
2 x
21 21 ✗ = 5×2
g-
312
=
x
b- I = 10
D-
, Examples :
I 21%+043+9=15 2 5 ( x -
2) = 7/2 -
x )
2×+8+9 =
15
50C 10 = 14 70C
-
-
20C + 177 = 15
53C -170C = 14 + 10
2x = 15 -
17
120C =
24
20C =
-2 x = 2
2 2
✗ = -
I
3 20C
4 3×39-3 LCD
2=12
3×5 59×2 : 6
3- +3×-2
=
3 × 2 -3×2
23C
= 12 -12
3( 3g -
3) + 3( 5) =
Zcsy)
3-
6 6 6
23C
= 14
3- 3) 315 ) ( Sy)
313g 2
-
+ =
20C
31 × 14 3
9g -9
= ✗ + 15
-31 toy
=
2x = 42
9g +6 =
toy
23C =
42 6
toy -9
=
y
2 2
6 =
Y ☐
✗ = 21
,
