How do you solve -4(7a+5)= —160
2 answers:
-4(7a+5)= —160
distribute the -4 on the left hand side
-4* 7a + -4*5 = -160
-28a +-20 = 160
-28a -20 = -160
add 20 to each side
-28a-20+20 = -160 +20
-28a = -140
divide by -28 on each side
-28a/-28 = -140/-28
a = 5
Answer: a=5
-4(7a+5)= -160
=>4(7a+5)= 160 ( Removing the negative signs by switching the sides )
=>4(7a+5)/4= 160/4 ( Dividing both sides by 4 )
=>7a+5= 40
=>7a+5-5= 40-5 ( Subtarcting 5 from both sides )
=>7a= 35
=>7a/7= 35/7 ( Dividing both sides by 7 )
Therefore, a=5 (Answer)
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