Practice 4 -3Solve each equation. Check your answer.
5. -9 = -4 + a11::. ••!?
6. -2 = c + 2C:; -4
7. x - (-3) = 7
6,:: LJ
4. P + 2 = -6
-1>:. ,6 : ------8. a + (-6) = 5 -------
~~ 1\
1. n + 2 = 5 2. x - 1= -3 3. 7 = a + 2
- -- ------------------------------.-:
I) \1+ 2 =- S2 - -2
3+2:55;~
-C\-:.---..J3-----------
)(. :: -3+\--
x -:. -2" +(;lo) ~SJ1 -~:;b
------7r-emo.ll:tl-e =1bu.:.\s'-.-..!b!l!1~_------------~/E)~-'=--~5 _;) 7=- Gl + 2 0\01(\ tkivwef!;Ct 7:. '0 +-2
7=-1
f' ~ -~-2
- --~::. ~
" -2:: C +2-2 2
-2 -:::.-4 +2
-2..-;.. -2
-4~c
1) l( - (-3) =- I 4 - (-3) ::.7
4 +?J ~·1- 3 -3- -f 1
1-=--1
Proc-hc-e 4-4Solve and check each equation.
17. 19 = -21
)(~ ~qGJ
.L_::r __
18. -22 = -63
X-;.I~ x';. -4
20. 91 = -98
X:. -gq/~
19. -41x = 164
21. 452 = -4x
1~-It;22. 50x = - 2,500 .
~-::.-~
I~l.u,--.l5.. -~--='M42-)1----n
X';. ,~eto
,~-:u---12-",--
12.h13S-64 -
~I H5-let) •..41 >S ~ (U.:JiI=4i
- -
';.-4-0
- ,,~-:#1) _ 4&2 :; ~ 4-fi
-4 -4 -- 1.- 113: X 12-.-r----
d .~:.-2S0"?50 5b
---- --
X;, - 50---~------- -------
chr~~-~q-p;r- ~ -ZI
-21:: ...21
\<l2,1-
l~GJ-3qq
ch.c.&t :
'o8~ $-_-'3-22
~ cht<k,=
"-4 (-4' X"-4 ) :: Ibf.:7--'--_\:-=--- _~~,~
dvd,~%2; (-:4)(-II ~452 = _Zl5z._
----
c~~: - -~( -Eo);; -29lo
-2koo: -29:X)--
- ---
f:O-~---()O
250- --
--~'-------
Name Class Date _
Practice 4-6•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••
Solving Two-~tep Equations
Solve each equation. Then check your answer.
1. 7m + 8 = 71 2. ~ + 6 = 11 3. 12y + 2 = 146
m~q ~ ~~ . -11-=----:.:' '-=---~-
y - 65. -12 + 1 -
~;-~
7m +8= 71-~ -8
,m = "3- --, 7m:. q
c~Gl;7(9)+g~11
(63 +8 ~11,\ =71
(-1). Jt. ~ 5 -(1)-,'& -:. $
c\u<l~ 37 +,,';.\(-,S+~::.u
'\::"
4. 9' - 17 = 21
m~ ~1.
6. 2a - 1 = 19
ll;:··'O7. ~ - 8 = 17
c,~klb8. -4t + 16 = 24
t~ -J,,-
3) ,~+2=\4b-2. -2.--
l¥\':~Il- 14-
ltt ':; \'2--
ckcl:12( 12.)+ 2~ l~\44..•.l:=. l4h
\4lo~'~
s)~ +\ =(,-'2- -t
,1'1.?-",0
c~&:~+ '~b-\2-5 + \-=..1.,
,,~c;,
..,cr .. i2l. := 3'O.q
<:i\
tv\~ 3+2cw.dl :
~- \1:; 2'q.3B -\1:; 2.1
2\'~z..\
clucl:2(1C» - I::,q20-'~1C;
fq~lq
39-\1-v,
.-
cIf - B= 11t8 ~8--c _ 25'q ..
cr a %:: 25 .'i
C=225
cktA:2.2.-5--g:. ,-,q
_ &) -4~+ ICo ;. 24--If> -\b- ---l{-t- : 3
_4t:: 8-~ qt::,-2-
~dt-~4X-2,)-\-Ib= 24
B + lb ::2,t~=M
