Question

287+(120-x)=300 300-78:x=287

Answer 1

287+120-x=300. 300-78:x=287
-x=-107. 78:x=--13
x=107. x=-1014

Answer 2

Let's solve these two equations step by step:

1. 287 + (120 - x) = 300

First, simplify the equation by adding 287 and 120:

407 - x = 300

Now, isolate x by subtracting 300 from both sides of the equation:

407 - x - 300 = 300 - 300 107 - x = 0

Now, add x to both sides to solve for x:

107 - x + x = 0 + x 107 = x

So, x = 107.

2. 300 - 78/x = 287

First, let's subtract 287 from both sides of the equation:

300 - 287 = 78/x

Now, simplify the left side:

13 = 78/x

Now, isolate x by multiplying both sides by x:

13x = 78

Next, divide both sides by 13 to solve for x:

(13x)/13 = 78/13 x = 6

So, x = 6.

Now you have found the values of x for both equations:

1. From the first equation: x = 107
2. From the second equation: x = 6