exam Maths Puzzle Numerical Ability

Solve by elimination
4x + 5y = -16

5x - 6y = -20

please help!

Read Solution (Total 0)

exam Other Question
The corresponding edges of two similar triangular prisms are in the ratio 3:5. What is the ratio of their surface areas? What is the ratio of their volumes?
rationalizing the denominator. Simplify the expression. Square root of 7/8