3 years ago

2(a-7)=a+4 15 6PLS HELPPPPPPPPPPP

Mathematics

2 answers:

muminat3 years ago

8 0

Answer:

a = 18

Step-by-step explanation:

2(a-7)=a+4

Distribute 2 into left side: 2a -14 = a + 4

subtract a from both sides 2a-a-14 = a+4-a

Simplify: a - 14 = 4

Add 14 to both sides: a - 14 + 14 = 4 +14

Simplify: a = 18

If wanted, plug a into original to double check work:

plug in: 2 (18-7) = 18+4

do parenthesis first: 2 (11) = 18+4

do multiplication : 22 = 18+4

additions: 22 =22

a = 18 is correct.

Otrada [13]3 years ago

4 0

Answer:

A=18

Step-by-step explanation:

2(a-7)=a+4

2a-14=a+4

add 14 to both sides

2a=a+18

subtract a from both sides

a=18

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2(a-7)=a+4 15 6PLS HELPPPPPPPPPPP​

2(a-7)=a+4 15 6PLS HELPPPPPPPPPPP