7х - 2х + 35 =100

To solve the equation 7x - 2x + 35 = 100, start by combining like terms on the left side:

7x - 2x + 35 = 100 (7x - 2x) + 35 = 100 5x + 35 = 100

Next, isolate the variable by subtracting 35 from both sides:

5x + 35 - 35 = 100 - 35 5x = 65

Finally, solve for x by dividing both sides by 5:

5x/5 = 65/5 x = 13

Therefore, the solution to the equation 7x - 2x + 35 = 100 is x = 13.