Solved on Jan 21, 2024

Solve the linear equation y57=2x\frac{y}{5}-7=-2 x for xx and yy.

STEP 1

Assumptions
1. We are given the equation y57=2x\frac{y}{5}-7=-2x.
2. We need to solve for yy in terms of xx.

STEP 2

We start by isolating the term containing yy on one side of the equation. To do this, we add 77 to both sides of the equation to remove the 7-7 from the left side.
y57+7=2x+7\frac{y}{5}-7+7=-2x+7

STEP 3

Simplify both sides of the equation.
y5=2x+7\frac{y}{5}= -2x + 7

STEP 4

Now, we want to solve for yy. To do this, we multiply both sides of the equation by 55 to get rid of the denominator on the left side.
5y5=5(2x+7)5 \cdot \frac{y}{5} = 5 \cdot (-2x + 7)

STEP 5

Simplify the left side of the equation by canceling out the 55 in the numerator and the denominator.
y=5(2x+7)y = 5 \cdot (-2x + 7)

STEP 6

Distribute the 55 across the terms inside the parentheses on the right side of the equation.
y=5(2x)+57y = 5 \cdot (-2x) + 5 \cdot 7

STEP 7

Multiply the constants.
y=10x+35y = -10x + 35
The solution to the equation y57=2x\frac{y}{5}-7=-2x in terms of yy is y=10x+35y = -10x + 35.

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