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Solve the following equations. Show your complete solutions.

A.

1)x+7=18

2)x-13 15

3) 8x=64

4)5x-13-12

I need a complex solution
And pls can u not simplyfy it

User GeekJock
by
7.1k points

1 Answer

4 votes

Answer:

1. x = 11

Explanation:

1. x + 7 = 18

move 7 to right then change the sign
x = 18 - 7
x = 11
2. x - 13 = 15

move -13 to right then change the sign
x = 15 + 13
x = 28
3. 8x = 64
8 8
divided by 8 both side
x = 8
4. 5x-13-12=0 it this the correct given?
add same variable
5x = 13 + 12
5x = 25
5 5

divided by 5 both side
x = 5

User Sander Garretsen
by
8.0k points