Question

15х+4-(х-12) при х = 0,7 упростить выражение

Answer 1

Решение на фото, всё очень просто

Answer 2

To simplify the expression 15x + 4 - (x - 12) when x = 0.7, follow these steps:

Step 1: Substitute the value of x into the expression: 15(0.7) + 4 - (0.7 - 12)

Step 2: Perform the arithmetic operations within parentheses first: 15(0.7) + 4 - (-11.3)

Step 3: Multiply 15 by 0.7: 10.5 + 4 - (-11.3)

Step 4: Now, perform the subtraction: 10.5 + 4 + 11.3

Step 5: Finally, add the numbers together: (10.5 + 4 + 11.3) = 25.8

So, when x = 0.7, the simplified value of the expression 15x + 4 - (x - 12) is 25.8.