Question

Solve:7 +42-32-32 = 14.3-2a +7 A = -3 A= 0 A= 3 no solution

Answer 1

Answer:

a = 18.15

Step-by-step explanation:

$7+42-32-32=14.3-2a+7$

Combine like terms on the left side of the equation first. Add 7 and 42, then subtract 32 from the answer you get, then subtract 32 from that answer. This is going by order of PEMDAS.

Remember PEMDAS: (numbers 3 & 4 and numbers 5 & 6 are solved from left to right)

1. Parentheses
2. Exponents
3. Multiplication
4. Division
5. Addition
6. Subtraction

$-15=14.3-2a+7$

After combining like terms on the left side, you get -15. Now combine like terms on the right side of the equation by adding 14.3 and 7.

$-15=21.3-2a$

Get -2a alone by subtracting 21.3 from both sides.

$-36.3=-2a$

Divide both sides by -2.

$a=18.15$

In this equation, a should equal $\boxed{18.15}$.