exam Maths Puzzle Numerical Ability

solve this system of equations. if it is unsolvable say so.
3x + 4y + 5z=8
1x - 2y + 3z= -6
2x - 4y + 6z=8

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exam Other Question

Find all real solutions to the equation.
the sqare root of x+4 minus 2 time the sqare root of x-1 = -1
36. Find the slope and y-intercept.
x = 2
A) Slope: 0; y-intercept: (0, 2)
B) Slope: undefined; y-intercept: (0, 2)
C) Slope: 0; y-intercept: none
D) Slope: undefined; y-intercept: none
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