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FORM203
NAME( )
*IF X=3 Y=4 AND Z=5 ,FIND THE VALUES OF
A.2Y+4 B.3Y+5Z C.8-X
D.Y E.3Y+2Z
*SIMPLIFY THE FOLLOWING:
A.7x+11y B.7x-5x C.3x-6x
D.6b-4b+3b E.6ab-3ab-2ab
F.3ab+2ab+4ab-5ab+11b+6ab
G.(2x)(5y) H.(3a)(4b)
I.8p(-q)(3r) J.(-5a)/8b
*SOLVE THE FOLLOWING EQUATIONS:
A.x+3=8 B.x-4=6 C.2x=8
D.6x+11=25-x E.2(x+1)=9
F.5(x-3)=12
G.3(2x-1)+4(2x+5)=40 H.x+x=10
I.x+3-2x+1=2
3 2 5 4
*VERBAL PROBLEMS
A.25 ARTICLES ARE BOUGHT.SOME COST 8P EACH AND THE OTHERS COST 7P EACH.IF THE TOTAL COST IS 1.95 POND,HOW MANY OF EACH ARE BOUGHT?
B.I THINK OF A NUMBER.IF I SUBTRACT 9 FROM IT AND MULTIPLY THIS DIFFRENCE BY 4 ,THE RESULT IS 32.WHAT IS THE NUMBER I THOUGHT OF?
C.FIND THREE CONSECUTIVE WHOLE NUMBERS WHOSE SUM IS 54.
D.4 TIMES A CERTAIN NUMBER PLUS 9 IS EQUAL TO 3 TIMES THE NUMBER PLUS 20.FIND THE NUMBER.
*FOLLOWING EQUATIONS INCLUDE DECIMAL OR FRACTIONS COEFFICIENTS.
FOR EXAMPLE,WHEN ONE OF COEFFICIENTS IS 0.1 ,TRY TO MULTIPLY THE EQUATION BY 10 BOTH SIDES.WHEN THE LINEAR EQUATION INCLUDES FRACTION
COEFFICIENTS ,MULTIPLY BY THE LEAST COMMON MULTIPLE OF ALL DENOMINATORS BOTH SIDES.THIS METHOD SAVES YOU A LOT OF TIME !
(1) 0.5x-3=3.5 (2)0.7x-1=0.3x (3)4.2x-0.8=1.7x+4.2
(4)x-2x=7x (5)1x-1=2x-1
(6)x-1=2x-3
3 5 4
(10)7-2x=1 (11)2x+4=5-x
(12)x-2=x+3 (13)x-5=x+3
9 2 3 7
(14)0.5x-4=.25x+1
(15)0.3x+0.4=0.3+0.2x (16)x+x=1
3 4
(17)2x-3x=8 (18)3x+2=1x-1
(19)5-3x=1
3 5 4 3 3