becca2327
03.12.2019 •
Mathematics
What’s the equation for -2(3x-4)+9=2x+3
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Ответ:
11=2x+3
8=2x
x=4
Ответ:
x=2.5
Step-by-step explanation:
• Distributive Property
-6x+8+9=2x+3
• Add like terms
-6x+17=2x+3
• Move like variables over equal sign
17=2x+3
+6x (the sign flips once across equal sign)
• Same thing with the whole #s
17=8x
+3
• Get "x" by itself by dividing the 8 on both sides
(÷8) 20=8x (÷8)
• Equals
x=2.5
Ответ:
Step-by-step explanation:
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