Equations with Brackets is where you need to seperate the equation so it's balanced.
EG1) 5 (x + 7 )
5 x X = 5X
5x 7 = 35
5X + 35
EG2) 5 (x + 7 ) = 2x + 41
We already know what the first part is from EG1.
5x + 35 = 2x + 41
-2x -2x
3x + 35 = 41
-35 -35
3x = 6
x = 2
EG3) 2(5x+1) = 3(3x+7)
2(5x+1) 3(3x+7)
2x 5 = 10x 3 x 3x = 9x
2 x 1 = 2 3 x 7 = 21
10x + 2 = 9x + 21
- 2 -2
10 x = 9x + 19
-9x -9x
x = 19
Questions :
1. 4 (x-3) = 4
2. 6 (x + 5 ) = 54
3. 2 (x+3) = 10
EG1) 5 (x + 7 )
5 x X = 5X
5x 7 = 35
5X + 35
EG2) 5 (x + 7 ) = 2x + 41
We already know what the first part is from EG1.
5x + 35 = 2x + 41
-2x -2x
3x + 35 = 41
-35 -35
3x = 6
x = 2
EG3) 2(5x+1) = 3(3x+7)
2(5x+1) 3(3x+7)
2x 5 = 10x 3 x 3x = 9x
2 x 1 = 2 3 x 7 = 21
10x + 2 = 9x + 21
- 2 -2
10 x = 9x + 19
-9x -9x
x = 19
Questions :
1. 4 (x-3) = 4
2. 6 (x + 5 ) = 54
3. 2 (x+3) = 10