Solve for a
a=0
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2a-\left(3\times 2+1\right)=-7
Multiply both sides of the equation by 2.
2a-\left(6+1\right)=-7
Multiply 3 and 2 to get 6.
2a-7=-7
Add 6 and 1 to get 7.
2a=-7+7
Add 7 to both sides.
2a=0
Add -7 and 7 to get 0.
a=0
Product of two numbers is equal to 0 if at least one of them is 0. Since 2 is not equal to 0, a must be equal to 0.
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Limits
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