An equation is shown below:

2 answers:

7 0

5(2x - 8) + 15 = -15
-15 -15 subtract 15 from each side
5(2x - 8) = -30
÷5 ÷5 divide both sides by 5
2x - 8 = -6
+8 +8 add 8 to each side
2x=2
÷2 ÷2 divide both sides by 3
x = 1

Checking:
5(2(1)-8) + 15 = -15
5(-6) + 15 = -15
-30 + 15 = -15
-15 = -15 Correct! x=1

vivado [14]3 years ago

4 0

5(2x-8) + 15 = -15

Distribute the 5 into (2x-8) :
10x - 40 + 15 = -15

Add -25 and 15 :
10x - 25 = -15

Add 10 to both sides:
10x = -15 + 25
10x = 10

Divide both sides by 10 :
x = 10/10
x = 1

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