how do i do this equation ? -158=-2x+ 2(7x -7) . thank you
-158=-2x+ 2(7x -7)
-158 = -2x + 14x -14
-144 = 12x
-12 = x
-158 = -2x + 14x - 14
-158 = 12x - 14
-158 +14 = 12x - 14 +14
-144 = 12x
x = -12
thank you
You're welcome.
To solve the equation -158 = -2x + 2(7x - 7), follow these steps:
Step 1: Start by simplifying the equation.
- Distribute the 2 to both terms within the parentheses: -158 = -2x + 14x - 14
- Combine like terms: -158 = 12x - 14
Step 2: Isolate the variable (x) on one side of the equation.
- To do this, add 14 to both sides of the equation: -144 = 12x
Step 3: Solve for x.
- Divide both sides of the equation by 12: x = -144/12
- Simplify the right side of the equation: x = -12
So, the solution to the equation -158 = -2x + 2(7x - 7) is x = -12.