exam Maths Puzzle Numerical Ability

Solve by substitution or elimination:
x=3y+11
2x+5y=0
I dont understand could I please have help for this question?

Read Solution (Total 0)

exam Other Question

Here is an interesting problem
Solve the problem:
P(x)=-0.002x�+1.2x-300

Thanks 1. the first aid center of Mt. Thermopolis State Park needs to be at a point that is equidistant from three bike paths that intersect to form a triangle. Locate the point so that i