Solve the system of equations by substitution: 3x=y 2x+5y=-34
1 answer:
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Answer:
(a) Verified
(b) They are simultaneous equations
Step-by-step explanation:
Given
Required
Verify that: is a solution
We have:
Substitute:
Evaluate all products
Subtract:
<em>Because both sides of the equation are equal, then the point is a solution</em>
<em></em>
Also:
Substitute:
Evaluate all products
Subtract:
<em>Because both sides of the equation are equal, then the point is a solution</em>
<em></em>
<em></em>
Because the given point is a solution to both equations, then they are simultaneous equation
<u>Answer:</u>
x = -8
<u>Step-by-step explanation:</u>
We are given the following expression which we are to solve for :
For this expression, we will make the bases same on both sides of the equation and then equate the exponents equal to each other.
Multiplying the exponents and equating them to get:
x = -8