One number is five more than another, and their sum is three less than three times the smaller. Find the numbers.
1 answer:
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Answer:
false
Step-by-step explanation:
Both of the matrices are 1 x 1 ("one by one"), so they can be added to produce a 1 x 1 matrix.
To add (or subtract) two matrices, they must be the same size.
(m x n) + (m x n) = (m x n)
m x n means a matrix has m rows and n columns. Dimensions are always named in that order: rows, then columns.
Answer:
y = 3x - 6
Step-by-step explanation:
given 9x - 3y = 18
isolate - 3y by subtracting 9x from both sides of the equation
- 3y = 18 - 9x ( divide all terms by - 3 )
y = -
= - 6 + 3x = 3x - 6