Question

120+3x=375 10x+3-x=12

Answer 1

1) 3x=255

x=255:3=85

2) 10x-x=12-3

9x=9

x=9:9=1

Answer 2

Ответ:

Пошаговое объяснение:

120+3x=375

3х=375-120

3х=255

х=255:3

х=85

120+3*85=375

375=375

10x+3-x=12

9х=12-3

9х=9

х=1

10*1+3-1=12

12=12

Answer 3

To solve the equations, let's find the values of 'x' that satisfy each equation.

1. 120 + 3x = 375:

Step 1: Subtract 120 from both sides to isolate the term with 'x' on one side of the equation. 120 + 3x - 120 = 375 - 120 3x = 255

Step 2: Divide both sides by 3 to find the value of 'x'. x = 255 / 3 x = 85

So, the solution for the first equation is x = 85.

2. 10x + 3 - x = 12:

Step 1: Combine like terms on the left side of the equation. 10x - x + 3 = 12 9x + 3 = 12

Step 2: Subtract 3 from both sides to isolate the term with 'x'. 9x + 3 - 3 = 12 - 3 9x = 9

Step 3: Divide both sides by 9 to find the value of 'x'. x = 9 / 9 x = 1

So, the solution for the second equation is x = 1.

Therefore, the values of 'x' that satisfy the given equations are:

For the first equation: x = 85 For the second equation: x = 1