How do you solve 710t=28?

2 Answers
Principal
Dec 9, 2016

t=40

Explanation:

The simplest way for me, is to get a common denominator first. So since 10 is the denominator of the fraction 710 we will simply do:

28⋅10/1⋅10=28010

Now cross multiply:

710t=28010

70t=2800=?

Divide to get the variable alone:

7070t=280070

Answer: t=40

SCooke
Dec 9, 2016

Move all of the constants to one side of the equation with algebraic operations.

Explanation:

1) Perform the indicated multiplication on the left side to get all of the factors.
(710)⋅t=28
2) Divide (710) from both sides. (all operations must be done on both sides to maintain the equality). Or, in sequence, Divide 7 from both sides, then multiply 10 on both sides.

t=(107)⋅28
3) Carry out the indicated operations to simplify the terms.
t=(107)⋅28;t=(2807);t=40

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