a = 3a + 12
- 3a - 3a
-2a = 12
-2 -2
a = -6
: -x/2+3/2<5/2=x>-2
-x/2+3/2-3/2= -x/2<5/2-3/2=1
-x/2<1
-x/2/2= -x<1/2
-x can be transformed into -1/2x
-1/2x / -1/2=x
1/-1/2=-2
<span>x>-2</span>
Answer:
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Step-by-step explanation:
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Answer:Please give me brainliest
This for the first one
x=5
y=46
z=88
This for second one
x=y
so x=45
y=45
z=11.1
This for the third one
x=60
y=60
z=4.2
This for the fourth one
x=60
y=16
z=16
Step-by-step explanation:
Answer: C.
Step-by-step explanation: does 15=10+5? Yes. Does 30=25+5? Yes. Does 45=40+5? Yes indeed.