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# SAT Algebraic Manipulations

If $$5x+13 = a$$, which of the following equals $$10x+26$$?

(A) $$\ \ -2a$$
(B) $$\ \ a$$
(C) $$\ \ 2a$$
(D) $$\ \ 2b$$
(E) $$\ \ 10b+26$$

If $$12x+17 = 7$$, what is the value of $$12x-17$$?

(A) $$\ \ -44$$
(B) $$\ \ -27$$
(C) $$\ \ -10$$
(D) $$\ \ -7$$
(E) $$\ \ 27$$

If $$6x-30=450$$, which of the following equals $$x-5$$?

(A) $$\ \ 5$$
(B) $$\ \ 6$$
(C) $$\ \ 75$$
(D) $$\ \ 80$$
(E) $$\ \ 480$$

If $$y=x-5$$ and $$14y+15y=29$$, what is the value of $$x$$?

(A)$$\ \ -4$$
(B)$$\ \ 1$$
(C)$$\ \ 6$$
(D)$$\ \ 29$$
(E) $$\ \ 34$$

If $$83000=1000(8p+3)$$, which of the following equals $$p$$?

(A) $$\ \ \frac{1}{10}$$
(B) $$\ \ 1$$
(C) $$\ \ 10$$
(D) $$\ \ 100$$
(E) $$\ \ 1000$$

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