exam Maths Puzzle Numerical Ability

2x+3y=8
-x+y=-4
Please help me with linear system

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exam Other Question

How can you find the slope-intercept form of the line perpendicular to y=-3x, passing through the point (o,-3)? Solve:

3(-5 + 4p) - (-(-2 2nd power))p = -5p(-3 to 0 power - (-1) 3 power) -/-9/