book Maths Puzzle Numerical Ability

i need help with the following problems
:22+4y-14=0
:4(x+5)=16
:-40-(-2x+5)=-61

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book Other Question

Determine the horizontal and vertical intercepts for the graph defined by the given equation.

y = 8x + 5
which of the following statements is/are true for all positive real numbers a,b,c?

a. sqrt (a^2 + 4b^2)= a + 2b
b. (2*(a^1/2)*(b^ 3/2))^4=16a^2*b^6
c. both (a) and (b)
d. nei