2x - 1 = x + 15
Add 1 to both sides: 2x = x + 16
Subtract x from both sides: x = 16
3
No. 7*3, alone, is bigger than 12.
2x (1+3)=(2x1+(2x3)
it wouldn't equal anything its a prime number but of course it would be only 2x1
It is: 1*2 = 2 which is also a prime number
3x1000 + 6x100 + 1x10 + 2x1/10 + 1x1/1000 = 3000 + 600 + 10 + 0.2 + 0.001 = 3610.201
One way to solve this system of equations is by using matrices. Form an augmented matrix in which the first 2x2 matrix is the coefficient matrix and the 2x1 matrix on its right is the answer. Now apply Gaussian Elimination and back-substitution. Using this method gives x=5 and y=1.
2
22 + .056
118x12 equals 354+1118X 12====236+118====3541. 8x2 is 16.2. You bring the 1 to 2x1.3. 2x1 is 2, add the 1 which is 3.4. Then you multiply 2x1 again which is 2.NOW YOUR ON THE ROW...1. Add the magic 0.2. Multiply 1x8=8.3. Then you will multiply 1x1 which is 1.4. Last but not least you Multiply 1x1 again, and it equals 1.5. NOW YOU ADD ALL THAT UP AND YOU GET 354
True
2x1=2