How do you solve: 3 (x-1)=6

2 answers:

8 0

If you're trying to find x first expand the brackets by multiplying whats on the outside; 3 by everything inside the bracket giving you 3x-3=6 then balance it by adding 3 to one side and doing the same on the other side to get 3x=9 then divide by 3 on both sides to give you an answer of x=3 hope that helps ^^;

Leni [432]4 years ago

3 0

Multiply 3 times x which gives you 3x then multiply 3 times -1 which gives you -3. Now you have an equation 3x-3=6. This is a two step equation so you have to add 3 (inverse operation) to 6 which gives you 9. Now you divide 9/3 which equals 3. The answer is 3

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How to find left and right inverse of a 3x2 matrix.

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Let A be a 3×2 matrix, L its left inverse, and R its right inverse. L and R are then matrices such that LA = I₂ (the 2×2 identity matrix) and AR = I₃ (the 3×3 identity matrix). Clearly L must be 2×3 and R must be 3×2 in order for the matrix products to be defined.

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