angiapplegateowauem angiapplegateowauem
  • 15-09-2017
  • Mathematics
contestada

workout 3(-a + 2a - 4)= -5

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Rainbowface33
Rainbowface33 Rainbowface33
  • 15-09-2017
Let's solve your equation step-by-step.3(−a+2a−4)=−5Step 1: Simplify both sides of the equation.3(−a+2a−4)=−5(3)(−a)+(3)(2a)+(3)(−4)=−5(Distribute)−3a+6a+−12=−5(−3a+6a)+(−12)=−5(Combine Like Terms)3a+−12=−53a−12=−5Step 2: Add 12 to both sides.3a−12+12=−5+123a=7Step 3: Divide both sides by 3.3a/3=7/3a=7/3Answer:a=7/3
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Аноним Аноним
  • 15-09-2017
3(-a+2a-4)=-5
3(-a)+3(2a)-3(4)=-5
-3a+6a-12=-5
             +12 +12
-3a+6a= 3a
3a=7
---  ---
3     3
a=2.3
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