2x + 5 - 7x = 15
What is your math question? Please be clear and let the math teachers know what your attempts have been in solving this.
2x+5-7x=15
or,-5x=15-5
or,-5x=10
or,x=10/(-5)
or,x=-2
2x+5-7x=15
2x+5-7x-15=0
-5x-10=0
-5x=10
x=10/-5
x= -2
Any time you need help hear is a handy website math papa
x=-2
To solve the equation 2x + 5 - 7x = 15, we need to find the value of x that satisfies the equation.
Step 1: Combine like terms on the left side of the equation.
Combine the x terms: -7x + 2x = -5x.
The equation becomes: -5x + 5 = 15.
Step 2: Isolate the variable term.
To isolate the variable term (-5x), we need to move 5 to the other side of the equation by doing the opposite operation.
Subtract 5 from both sides of the equation:
-5x + 5 - 5 = 15 - 5.
This simplifies to: -5x = 10.
Step 3: Solve for x.
To solve for x, we need to isolate it. Divide both sides of the equation by -5:
(-5x) / -5 = 10 / -5.
This simplifies to: x = -2.
Therefore, the solution to the equation 2x + 5 - 7x = 15 is x = -2.