Exercise 60 Page 86

To solve the equation we need to isolate h on one side of the equation. By subtracting 2.8 from both sides, we can cancel it from the left-hand side.

h+2.8=-3.7

SubEqn

LHS-2.8=RHS-2.8

h+2.8-2.8=-3.7-2.8

SubTerm

Subtract term

h=-6.5

Therefore, h=-6.5 is the solution to the equation. To check that we have the correct solution, we can substitute h=-6.5 into the original equation and simplify.

h+2.8? =-3.7

Substitute

h= -6.5

-6.5+2.8? =-3.7

RearrangeEqn

Rearrange equation

2.8+(-6.5)? =-3.7

AddNeg

a+(- b)=a-b

2.8-6.5? =-3.7

SubTerms

Subtract terms

-3.7=-3.7

Since the left-hand side and right-hand side are equal, h=-6.5 is the correct solution.