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Art [367]
3 years ago
12

What is the solution to the equation 7(a – 10) = 13 – 2(2a 3)?

Mathematics
2 answers:
geniusboy [140]3 years ago
7 0
7(a - 10) = 13 - 2(2a + 3)
7a - 70 = 13 - 4a - 6 = 7 - 4a
7a + 4a = 7 + 70
11a = 77
a = 77/11 = 7
a = 7.
valina [46]3 years ago
3 0

Answer:

a=7

Step-by-step explanation:

we have

7(a-10)=13-2(2a+3)

Solve for a

7a-70=13-4a-6

Group terms that contain the same variable and move the constants to the other side

7a+4a=13-6+70

Combine like terms

11a=77

Divide by 11 both sides

a=7

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