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eimsori [14]
2 years ago
13

7) 2.1x + 45.2 = 3.2 -8.4x

Mathematics
2 answers:
densk [106]2 years ago
7 0

Answer:

x=-4, Give brainliest please

Step-by-step explanation:

Step 1: Add 8.4x to both sides.

2.1x+45.2 =  -8.4x +3.2

       +8.4x    +8.4x

10.5x+45.2=3.2

Step 2: Subtract 45.2 from both sides.

10.5x + 45.2 = 3.2

         -45.2    -45.2

10.5x=−42

Step 3: Divide both sides by 10.5.

\frac{10.5x}{10\\}=\frac{-42}{10}

x=−4

denis23 [38]2 years ago
3 0

Answer:

x=-4

Step-by-step explanation:

brainliest please

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