exam Maths Puzzle Numerical Ability

I need your help solving this problem:3x+y-1=49

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exam Other Question

solve the equation:
[2x-[3x=1]]=1

*brackets meaning absolute value*
Thank you! Complete the following for each function y=f(x)
a. State the x-intercepts of the graph and whether the graph crosses or just touches the x-axis at each x-intercept.
b. State the