Question

0,4(x-9)-0.3(x+2)=0.7

Answer 1

0,4(х-9)-0,3(х+2) = 0,7
0,4х - 3,6 - 0,3х - 0,6 = 0,7
0,1х - 4,2 = 0,7
0,1х = 4,9
х = 49

Answer 2

0,4х-3,6-0,3х+0,6=0,7;
0,4х-3,6-0,3х=0,7-0,6;
0,4х-3,6-0,3х=0,1;
0,1х-3,6=0,1;
0,1х=3,7
х=3,7:0,1
х=37
Ответ:37

Answer 3

To solve the equation 0.4(x - 9) - 0.3(x + 2) = 0.7, follow these steps:

Step 1: Distribute the constants and simplify the equation: 0.4x - 3.6 - 0.3x - 0.6 = 0.7 (0.4x - 0.3x) + (-3.6 - 0.6) = 0.7 0.1x - 4.2 = 0.7

Step 2: Add 4.2 to both sides to isolate the variable term: 0.1x = 0.7 + 4.2 0.1x = 4.9

Step 3: Divide both sides by 0.1 to solve for x: x = 4.9 / 0.1 x = 49

So, the solution to the equation is x = 49.