# if f(x) = 7x+2 and g(x) = 8x-3 find f(a)+g(a+1)?

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- PhilipLv 61 month ago
f(x) = 7x+2, g(x) = 8x-3.;

f(a) = 7a+2;

g(a+1) = 8(a+1)-3 = 8a+5;

f(a) + g(a+1) = (7a+2) + (8a+5) = (15a+7).

- KrishnamurthyLv 71 month ago
If f(x) = 7x + 2 and g(x) = 8x - 3

f(a) + g(a + 1)

= 7a + 2 + 8(a + 1) - 3

= 15a + 7

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