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4. What value of x makes this equation true? ​

4 What Value Of X Makes This Equation True class=

Sagot :

Answer:

x = -30

Step-by-step explanation:

Combine like terms.  Subtract 0.1x from both sides; the result is 0.5x + 7 = -8.  Next, subtract 7 from both sides, obtaining:

0.5x = -15

Dividing both sides by 0.5 results in x = -30

The equation is true for x = -30