book Maths Puzzle Numerical Ability

Could you please help me? I have been haveing serious problems with this equation.
y=4x+1
y=4x-3
It has to be solved useing elimination, or substitution. And i have tryed both. Could you please help?

Read Solution (Total 0)

book Other Question

How long will it take for $6100 to grow to $49200 at an interest rate of 9.4if the interest rate is compounded quarterly. Round to the nearest 10th find the domain of f(x)= 7 + sqrt(3x+21), express it using interval notion