Mathematics: Plz plz plz plz help

She can use the expression 19 (42 plus 58). this is how it works: 19 x 42 plus 19 x 58 is the same as 19 (42 plus 58) equals 19 (100) equals 1900...

Plz plz plz plz help - id14388541, meleaallison

johnkhan6748

20.09.2021

Given the equation: $\frac{5x+4}{2} = 7$

x = 2

Explanation:

Multiply 2 on both sides of the equation to eliminate the fraction on the left-hand side:

$2(\frac{5x+4}{2}) = 7(2)$

2 cancels out on the left side, leaving 5x + 4, and 14 on the right-hand side of the equation:

5x + 4 = 14

Subtract 4 from both sides of the equation:

5x + 4 - 4 = 14 - 4

5x = 10

Divide both sides of the equation by 5 to solve for x:

$\frac{5x}{5} = \frac{10}{5}$

x = 2

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