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SOMEONE PLS HELP ASAP! ALEGBRA 1
4.2(9-x)+36=102-2.5(2x+2)

User Ott Toomet
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2 Answers

25 votes
25 votes

Answer:

x=20

Explanation:

i used mathaway, hope this helps

User Mmonem
by
2.9k points
22 votes
22 votes

Answer: x=29

Step-by-step explanation: 4.2(9−x)+36=102−2.5(2x+2)

Use the distributive property to multiply 4.2 by 9−x.

37.8−4.2x+36=102−2.5(2x+2)

Add 37.8 and 36 to get 73.8.

73.8−4.2x=102−2.5(2x+2)

Use the distributive property to multiply −2.5 by 2x+2.

73.8−4.2x=102−5x−5

Subtract 5 from 102 to get 97.

73.8−4.2x=97−5x

Add 5x to both sides.

73.8−4.2x+5x=97

Combine −4.2x and 5x to get 0.8x.

73.8+0.8x=97

Subtract 73.8 from both sides.

0.8x=97−73.8

Subtract 73.8 from 97 to get 23.2.

0.8x=23.2

Divide both sides by 0.8.

x=

0.8

23.2

​Expand

0.8

23.2

by multiplying both numerator and the denominator by 10.

x=

8

232

​Divide 232 by 8 to get 29.

x=29

GRAPH

User Ever
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2.5k points